Swine Flu Contamination and Cleaning CDC Source

As per the CDC - Contamination & Cleaning

How long can influenza virus remain viable on objects (such as books and doorknobs)?

Studies have shown that influenza virus can survive on environmental surfaces and can infect a person for 2 to 8 hours after being deposited on the surface.

What kills influenza virus?

Influenza virus is destroyed by heat (167-212°F [75-100°C]). In addition, several chemical germicides, including chlorine, hydrogen peroxide, detergents (soap), iodophors (iodine-based antiseptics), and alcohols are effective against human influenza viruses if used in proper concentration for a sufficient length of time. For example, wipes or gels with alcohol in them can be used to clean hands. The gels should be rubbed into hands until they are dry.

*What if soap and water are not available and alcohol-based products are not allowed in my facility?
Though the scientific evidence is not as extensive as that on hand washing and alcohol-based sanitizers, other hand sanitizers that do not contain alcohol may be useful for killing flu germs on hands.

What surfaces are most likely to be sources of contamination?
Germs can be spread when a person touches something that is contaminated with germs and then touches his or her eyes, nose, or mouth. Droplets from a cough or sneeze of an infected person move through the air. Germs can be spread when a person touches respiratory droplets from another person on a surface like a desk, for example, and then touches their own eyes, mouth or nose before washing their hands.

How should waste disposal be handled to prevent the spread of influenza virus?
To prevent the spread of influenza virus, it is recommended that tissues and other disposable items used by an infected person be thrown in the trash. Additionally, persons should wash their hands with soap and water after touching used tissues and similar waste.

What household cleaning should be done to prevent the spread of influenza virus?
To prevent the spread of influenza virus it is important to keep surfaces (especially bedside tables, surfaces in the bathroom, kitchen counters and toys for children) clean by wiping them down with a household disinfectant according to directions on the product label.

How should linens, eating utensils and dishes of persons infected with influenza virus be handled?
Linens, eating utensils, and dishes belonging to those who are sick do not need to be cleaned separately, but importantly these items should not be shared without washing thoroughly first.
Linens (such as bed sheets and towels) should be washed by using household laundry soap and tumbled dry on a hot setting. Individuals should avoid “hugging” laundry prior to washing it to prevent contaminating themselves. Individuals should wash their hands with soap and water or alcohol-based hand rub immediately after handling dirty laundry.

Eating utensils should be washed either in a dishwasher or by hand with water and soap.

Source: http://www.cdc.gov/H1N1flu/qa.htm

HEALTH EFFECTS OF CRYSTALLINE SILICA EXPOSURE

Description of Silicosis

When workers inhale crystalline silica, the lung tissue reacts by developing fibrotic nodules and scarring around the trapped silica particles [Silicosis and Silicate Disease Committee 1988]. This fibrotic condition of the lung is called silicosis. If the nodules grow too large, breathing becomes difficult and death may result. Silicosis victims are also at high risk of developing active tuberculosis [Myers et al. 1973; Sherson and Lander 1990; Bailey et al. 1974].
A worker's lungs may react more severely to silica sand that has been freshly fractured (sawed, hammered, or treated in a way that produces airborne dust) [Vallyathan et al. 1988]. This factor may contribute to the development of acute and accelerated forms of silicosis.

Types of Silicosis

A worker may develop any of three types of silicosis, depending on the airborne concentration of crystalline silica:

• Chronic silicosis, which usually occurs after 10 or more years of exposure to crystalline silica at relatively low concentrations
• Accelerated silicosis, which results from exposure to high concentrations of crystalline silica and develops 5 to 10 years after the initial exposure
• Acute silicosis, which occurs where exposure concentrations are the highest and can cause symptoms to develop within a few weeks to 4 or 5 years after the initial exposure [Peters 1986; Ziskind et al. 1976]
  

Complications

Initially, workers with silicosis may have no symptoms. As silicosis progresses, there may be difficulty in breathing and other chest symptoms such as cough. Infectious complications may cause fever, weight loss, and night sweats. Severe mycobacterial or fungal infections can complicate silicosis and may be fatal [Ziskind et al. 1976; Owens et al. 1988; Bailey et al. 1974]. Fungal or mycobacterial infections are believed to result when the lung cells (macrophages) that fight these infections are overwhelmed with silica dust and are unable to kill mycobacteria and other organisms [Allison and Hart 1968; Ng and Chan 1991]. About half of the mycobacterial infections are caused by Mycobacterium tuberculosis (TB), with the other half caused by M. kansasii and M. avium-intracellulare [Owens et al. 1988]. Nocardia and Cryptococcus may also cause infections in silicosis victims [Ziskind et al. 1976].

Medical evaluations of silicosis victims usually show the lungs to be filled with silica crystals and a protein material [Owens et al. 1988; Buechner and Ansari 1969]. Pulmonary fibrosis (fibrous tissue in the lung) may or may not develop in acute cases of silicosis, depending on the time between exposure and onset of symptoms.

Furthermore, evidence indicates that crystalline silica is a potential occupational carcinogen [NIOSH 1988; IARC 1987; DHHS 1991], and NIOSH is reviewing the data on carcinogenicity.

Source: http://www.cdc.gov/niosh/consilic.html

Interim Recommendations for Facemask and Respirator Use to Reduce Novel Influenza A (H1N1) Virus Transmission

Interim Recommendations for Facemask and Respirator Use to Reduce Novel Influenza A (H1N1) Virus Transmission

As per the CDC - This document provides updated interim guidance on the use of facemasks and respirators for decreasing the exposure to novel influenza A (H1N1) virus. This guidance replaces other CDC guidance on mask and/or respirator use that may be included in other CDC documents in regards to the outbreak of novel H1N1 virus. No change has been made to guidance on the use of facemasks and respirators for health care settings. This document includes guidance on facemask and respirator use for a wider range of settings than was included in previous documents and includes recommendations for those who are at increased risk of severe illness from infection with the novel H1N1 virus compared with those who are at lower risk of severe illness from influenza infection. For more information about human infection with novel influenza A (H1N1) virus, visit the CDC H1N1 Flu website. Other CDC novel H1N1 guidance will be updated with the information contained in this document as soon as possible.

For complete article go to http://www.cdc.gov/h1n1flu/masks.htm

Mold Prevention Tips From the CDC

MOLD PREVENTION TIPS

• Keep the humidity level in your home between 40% and 60%. Use an air conditioner or a dehumidifier during humid months and in damp spaces, like basements.
• Be sure your home has enough ventilation. Use exhaust fans which vent outside your home in the kitchen and bathroom. Make sure your clothes dryer vents outside your home.
• Fix any leaks in your home’s roof, walls, or plumbing so mold does not have moisture to grow.
• Clean up and dry out your home thoroughly and quickly (within 24–48 hours) after flooding.
• Add mold inhibitors to paints before painting.
• Clean bathrooms with mold-killing products.
• Remove or replace carpets and upholstery that have been soaked and cannot be dried promptly. Consider not using carpet in rooms or areas like bathrooms or basements that may have a lot of moisture.

Source: www.cdc.gov

CDC Travel Health Warning for Novel H1N1 Flu in Mexico Removed

CDC’s Travel Health Warning recommending against non-essential travel to Mexico, in effect since April 27, 2009, has now been downgraded to a Travel Health Precaution for Mexico.

Current Situation

CDC has been monitoring the ongoing outbreak of novel H1N1 flu in Mexico and, with the assistance of the Mexican authorities, has obtained a more complete picture of the outbreak. There is evidence that the Mexican outbreak is slowing down in many cities though not all. In addition, the United States and other countries are now seeing increasing numbers of cases not associated with travel to Mexico. Finally, the risk of severe disease from novel H1N1 virus infection now appears to be less than originally thought.

CDC Recommendations

At this time, CDC has removed its recommendation that U.S. travelers avoid travel to Mexico.
CDC continues to recommend that travelers visiting Mexico take steps to protect themselves from getting novel H1N1 flu.

CDC recommends that travelers at high risk for complications from any form of influenza discuss with their physicians the risks and benefits of travel in the context of their planned itinerary to Mexico, and may want to consider postponing travel. Travelers at high risk for complications include:

• Children less than 5 years old
• Persons aged 65 years or older
• Children and adolescents (less than 18 years) who are receiving long-term aspirin therapy and who might be at risk for experiencing Reye syndrome after influenza virus infection
• Pregnant women
• Adults and children who have chronic pulmonary, cardiovascular, hepatic, hematological, neurologic, neuromuscular, or metabolic disorders
• Adults and children who have immunosuppression (including immunosuppression caused by medications or by HIV)
• Residents of nursing homes and other chronic-care facilities

If you travel to an area that has reported cases of novel H1N1 flu:
Stay Informed

Be aware that Mexico is checking all exiting airline passengers for signs of novel H1N1 flu. Exit screening may cause significant delays at airports.

source: http://wwwn.cdc.gov/travel/content/travel-health-precaution/novel-h1n1-flu-mexico.aspx

Mold Remediation Tasks

Tasks Involved In Remediation as Per the CDC

Responding to mold problems requires a series of actions. The order in which actions take place is sometimes important. Typically, the following actions are implemented to some extent regardless of whether a problem is small and simple or large and complex:

• Take emergency actions to stop water intrusion if needed.
  Identify vulnerable populations, extent of contamination, and moisture dynamic.
• Plan and implement remediation activities.
• Establish appropriate containment and worker and occupant protection.
• Eliminate or limit moisture sources and dry the materials.
• Decontaminate or remove damaged materials as appropriate.
• Evaluate whether space has been successfully remediated.
• Reassemble the space to prevent or limit possibility of recurrence by controlling sources of moisture and nutrients.
• For small, simple problems, the entire list may be implemented by one person. For larger, more complex problems, the actions in the list may be accomplished by a series of people in different professions and trades. For circumstances that fall between those extremes, some combination of occupant action and professional intervention will be appropriate. In general, no single discipline brings together all the required knowledge for successful assessment and remediation.

source: www.cdc.gov

What You Can Do To Stay Healthy Per CDC

What You Can Do to Stay Healthy

As per the CDC:

• Stay informed. This website will be updated regularly as information becomes available.
  Influenza is thought to spread mainly person-to-person through coughing or sneezing of infected people.
• Take everyday actions to stay healthy.
• Cover your nose and mouth with a tissue when you cough or sneeze. Throw the tissue in the trash after you use it.
• Wash your hands often with soap and water, especially after you cough or sneeze. Alcohol-based hands cleaners are also effective.
• Avoid touching your eyes, nose or mouth. Germs spread that way.
• Stay home if you get sick. CDC recommends that you stay home from work or school and limit contact with others to keep from infecting them.
• Follow public health advice regarding school closures, avoiding crowds and other social distancing measures.
• Find healthy ways to deal with stress and anxiety.
• Call 1-800-CDC-INFO for more information.

CDC Increases Testing for Swine Flu

CDC has developed a PCR diagnostic test kit to detect this novel H1N1 virus and has now distributed test kits to all states in the U.S. and the District of Columbia and Puerto Rico. The test kits are being shipped internationally as well. This will allow states and other countries to test for this new virus. This increase in testing will likely result in an increase in the number of confirmed cases of illness reported. This, combined with ongoing monitoring through Flu View should provide a fuller picture of the burden of disease in the United States over time.

http://www.cdc.gov/h1n1flu/

CDC Public Guidance on Swine Flu H1N1 Virus

Public Guidance

In addition, CDC has provided guidance for the public on what to do if they become sick with flu-like symptoms, including infection with novel H1N1. CDC also has issued instructions on taking care of a sick person at home. Novel H1N1 infection has been reported to cause a wide range of symptoms, including fever, cough, sore throat, body aches, headache, chills and fatigue. In addition, a significant number of people also have reported nausea, vomiting or diarrhea. Everyone should take everyday preventive actions to stop the spread of germs, including frequent hand washing and people who are sick should stay home and avoid contact with others in order to limit further spread of the disease.
Source: http://www.cdc.gov/h1n1flu/

Swine Flu CDC Update - New Virus Emerges

A New Virus Emerges

Novel influenza A (H1N1) is a new flu virus of swine origin that was first detected in April, 2009. The virus is infecting people and is spreading from person-to-person, and has sparked a growing outbreak of illness in the United States with an increasing number of cases being reported internationally as well.

CDC anticipates that there will be more cases, more hospitalizations and more deaths associated with this new virus in the coming days and weeks because the population has little to no immunity against it. Novel influenza A (H1N1) activity is now being detected in two of CDC’s routine influenza surveillance systems as reported in the May 8, 2009 FluView. FluView is a weekly report that tracks U.S. influenza activity through multiple systems across five categories.

The May 8 FluView found that the number of people visiting their doctors with influenza-like-illness is higher than expected in the United States for this time of year. Second, laboratory data shows that regular seasonal influenza A (H1N1), (H3N2) and influenza B viruses are still circulating in the United States, but novel influenza A (H1N1) and “unsubtypable”* viruses now account for a significant number of the viruses detected in the United States.

It’s thought that novel influenza A (H1N1) flu spreads in the same way that regular seasonal influenza viruses spread; mainly through the coughs and sneezes of people who are sick with the virus.

CDC continues to take aggressive action to respond to the outbreak. CDC’s response goals are to reduce the spread and severity of illness, and to provide information to help health care providers, public health officials and the public address the challenges posed by this new public health threat.

Source: http://www.cdc.gov/h1n1flu/

CDC Issues School Guidance

This includes updated interim guidance for schools and childcare facilities on preventing the spread of novel influenza A (H1N1) virus. At this time, CDC recommends the primary means to reduce spread of influenza in schools focus on early identification of ill students and staff, staying home when sick, and good cough etiquette and frequent hand washing. Decisions about school closure should be at the discretion of local authorities based on local considerations.

Source: http://www.cdc.gov/h1n1flu/

CDC Develops PCR Diagnostic Test Kit

As per the CDC website - CDC Has Increased Testing

CDC has developed a PCR diagnostic test kit to detect this novel H1N1 virus and has now distributed test kits to all states in the U.S. and Puerto Rico. The test kits are being shipped internationally as well. This will allow states and other countries to test for this new virus. This increase in testing capacity is likely to result in an increase in the number of reported confirmed cases in this country, which should provide a more accurate picture of the burden of disease in the United States.

Source: http://www.cdc.gov/h1n1flu/

Antimicrobial Products for Use Against Swine Flu and Other Influenza Viruses

Antimicrobial Products Registered for Use Against the H1N1 Flu (Swine Flu) and Other Influenza A Viruses on Hard Surfaces - As Per USEPA

The World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) are currently tracking an H1N1 flu outbreak that has caused infections in humans in the United States, Mexico, Canada and other countries. Information on this Web page will help you identify antimicrobial products that are registered by EPA to disinfect hard, non-porous surfaces that may be contaminated with the 2009-H1N1 flu.

EPA registers pesticide products, including disinfectants. As part of the registration process, EPA evaluates the product efficacy to make sure the public health label claims are accurate. Currently, over 500 disinfectant products are registered for use on hard, non-porous surfaces against influenza A viruses. EPA believes, based on available scientific information, that the currently registered influenza A virus products will be effective against the 2009-H1N1 flu strain and other influenza A virus strains on hard, non-porous surfaces. For safe and effective use of these products, always follow label instructions for these products, paying special attention to the product’s dilution rate (if applicable) and contact time.

Choose a product whose label states that it is effective against "Influenza A virus" and lists your specific site of concern, such as: farm premises, hospitals and other healthcare facilities, schools, offices or homes. These products are widely available and can be purchased at drugstores, supermarkets, and home maintenance/repair stores, among others.

As the CDC stresses, your first line of defense is to wash your hands frequently with soap and water or use an alcohol-based cleaner. These registered disinfectant products are for use on hard, non-porous surfaces, such as door knobs, handles, tables, floors, etc. EPA emphasizes that these products are not to be used on the skin or to be taken orally.

More than 500 antimicrobial products (20 pp, 62 K PDF) are registered by EPA specifically for use against influenza A virues. This is not a complete list since some products may have different distributor or product names and may not be referenced. We will continue to update this list as more information becomes available. Approved products specifically have label information which states they provide effectiveness against “Influenza A virues.”

Up-to-date information about the 2009-H1N1 flu is available on CDC’s Web site

Source: http://www.epa.gov/oppad001/influenza-disinfectants.html

Influenza A(H1N1) Swine Flu - update May 6 2009

As per WHO - May 6 2009, 22 countries have officially reported 1516 cases of influenza A (H1N1) infection.

Mexico has reported 822 laboratory confirmed human cases of infection, including 29 deaths. The United States has reported 403 laboratory confirmed human cases, including one death.

The following countries have reported laboratory confirmed cases with no deaths - Austria (1), Canada (165), China, Hong Kong Special Administrative Region (1), Colombia (1), Costa Rica (1), Denmark (1), El Salvador (2), France (4), Germany (9), Guatemala (1), Ireland (1), Israel (4), Italy (5), Netherlands (1), New Zealand (6), Portugal (1), Republic of Korea (2), Spain (57), Switzerland (1) and the United Kingdom (27).

It is considered prudent for people who are ill to delay international travel and for people developing symptoms following international travel to seek medical attention, in line with guidance from national authorities. Individuals are advised to wash hands thoroughly with soap and water on a regular basis and should seek medical attention if they develop any symptoms of influenza-like illness.

WHO advises no restriction of regular travel or closure of borders.

There is no risk of infection from this virus from consumption of well-cooked pork and pork products.

Further information on the situation will be available on the WHO website on a regular basis.
Source: http://www.who.int/csr/don/2009_05_06/en/index.html

Infections With a Swine-Origin Influenza A (H1N1) Virus

On April 28, this report was posted as an MMWR Dispatch on the MMWR website (http://www.cdc.gov/mmwr ).

Since April 21, 2009, CDC has reported cases of respiratory infection with a swine-origin influenza A (H1N1) virus (S-OIV) transmitted through human-to-human contact (1,2). This report updates cases identified in U.S. states and highlights certain control measures taken by CDC. As of April 28, the total number of confirmed cases of S-OIV infection in the United States had increased to 64, with cases in California (10 cases), Kansas (two), New York (45), Ohio (one), and Texas (six). CDC and state and local health departments are investigating all reported U.S. cases to ascertain the clinical features and epidemiologic characteristics. On April 27, CDC distributed an updated case definition for infection with S-OIV (Box).

Of the 47 patients reported to CDC with known ages, the median age was 16 years (range: 3--81 years), and 38 (81%) were aged <18 years; 51% of cases were in males. Of the 25 cases with known dates of illness onset, onset ranged from March 28 to April 25 (Figure). To date, no deaths have been reported among U.S. cases, but five patients are known to have been hospitalized. Of 14 patients with known travel histories, three had traveled to Mexico; 40 of 47 patients (85%) have not been linked to travel or to another confirmed case. Information is being compiled regarding vaccination status of infected patients, but is not yet available. According to the World Health Organization (WHO), as of April 27, a total of 26 confirmed cases of S-OIV infection had been reported by Mexican authorities. Canada has reported six cases and Spain has reported one case.*


Compete releae can be found at http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5816a5.htm

H1N1 Flu (Swine Flu) Update May 4 2009

CDC continues to take aggressive action to respond to an expanding outbreak caused by novel H1N1 flu.

CDC’s response goals are to:

1.Reduce transmission and illness severity, and
2.Provide information to help health care providers, public health officials and the public address the challenges posed by this emergency.

CDC continues to issue and update interim guidance daily in response to the rapidly evolving situation. CDC will issue updated interim guidance for clinicians on how to identify and care for people who are sick with novel H1N1 flu illness. This guidance will provide priorities for testing and treatment for novel H1N1 flu infection. The priority use for influenza antiviral drugs during this outbreak will be to treat people with severe flu illness.

On May 3, CDC is scheduled to complete deployment of 25 percent of the supplies in the Strategic National Stockpile (SNS) to all states in the continental United States. These supplies and medicines will help states and U.S. territories respond to the outbreak. In addition, the Federal Government and manufacturers have begun the process of developing a vaccine against the novel H1N1 flu virus.

Response actions are aggressive, but they may vary across states and communities depending on local circumstances. Communities, businesses, places of worship, schools and individuals can all take action to slow the spread of this outbreak. People who are sick are urged to stay home from work or school and to avoid contact with others, except to seek medical care. This action can avoid spreading illness further.

Source: http://www.cdc.gov/h1n1flu/

Maryland Dept of Heath and Hygiene Swine Flu Preparedness Guide

Maryland's Department of Health and Metal Hygiene has developed a Swine Flu Preparedness Guide which can be found at Swine Flu Preparedness Guide. It includes Common Sense Precautions Including:
•Wash your hands often, especially after coughing, sneezing, and wiping or blowing the nose.
•Cover your mouth when coughing or sneezing.
•Use paper tissues when wiping or blowing your nose; throw tissues away after use.
•Stay away from crowded living and sleeping spaces, if possible.
•Stay home and avoid contact with other people to protect them from catching your illness.

Antiviral Drugs and H1N1 Flu (Swine Flu)

As per the CDC ( http://www.cdc.gov/h1n1flu/antiviral.htm )

Antiviral Drugs

Antiviral drugs are prescription medicines (pills, liquid or an inhaler) with activity against influenza viruses, including swine influenza viruses. Antiviral drugs can be used to treat swine flu or to prevent infection with swine flu viruses. These medications must be prescribed by a health care professional. Influenza antiviral drugs only work against influenza viruses -- they will not help treat or prevent symptoms caused by infection from other viruses that can cause symptoms similar to the flu.

There are four influenza antiviral drugs approved for use in the United States (oseltamivir, zanamivir, amantadine and rimantadine). The swine influenza A (H1N1) viruses that have been detected in humans in the United States and Mexico are resistant to amantadine and rimantadine so these drugs will not work against these swine influenza viruses. Laboratory testing on these swine influenza A (H1N1) viruses so far indicate that they are susceptible (sensitive) to oseltamivir and zanamivir.

Benefits of Antiviral Drugs
Treatment: If you get sick, antiviral drugs can make your illness milder and make you feel better faster. They may also prevent serious influenza complications. Influenza antiviral drugs work best when started soon after illness onset (within two 2 days), but treatment with antiviral drugs should still be considered after 48 hours of symptom onset, particularly for hospitalized patients or people at high risk for influenza-related complications.

Prevention: Influenza antiviral drugs also can be used to prevent influenza when they are given to a person who is not ill, but who has been or may be near a person with swine influenza. When used to prevent the flu, antiviral drugs are about 70% to 90% effective. When used for prevention, the number of days that they should be used will vary depending on a person’s particular situation.

CDC Recommendation

CDC recommends the use of oseltamivir or zanamivir for the treatment and/or prevention of infection with swine influenza viruses.

•Oseltamivir (brand name Tamiflu ®) is approved to both treat and prevent influenza A and B virus infection in people one year of age and older.
•Zanamivir (brand name Relenza ®) is approved to treat influenza A and B virus infection in people 7 years and older and to prevent influenza A and B virus infection in people 5 years and older.

Recommendations for using antiviral drugs for treatment or prevention of swine influenza will change as we learn more about this new virus.

CDC H1N1 Flu Update (Swine Flu)

CDC continues to take aggressive action to respond to an expanding outbreak caused by H1N1 (swine flu). CDC’s response goals are to reduce transmission and illness severity, and provide information to help health care providers, public health officials and the public address the challenges posed by this emergency.

CDC continues to issue and update interim guidance daily in response to the rapidly evolving situation. Early this morning, CDC provided interim guidance on school closures. Supplies from CDC’s Division of the Strategic National Stockpile (SNS) are being sent to all 50 states and U.S. territories to help them respond to the outbreak. In addition, the Federal Government and manufacturers have begun the process of developing a vaccine against this new virus.

Response actions are aggressive, but they may vary across states and communities depending on local circumstances. Communities, businesses, places of worship, schools and individuals can all take action to slow the spread of this outbreak. People who are sick are urged to stay home from work or school and to avoid contact with others, except to seek medical care. This action can avoid spreading illness further.

Source: http://www.cdc.gov/h1n1flu/

Swine Flu Questions and Info Part III

How serious is swine flu infection?

Like seasonal flu, swine flu in humans can vary in severity from mild to severe. Between 2005 until January 2009, 12 human cases of swine flu were detected in the U.S. with no deaths occurring. However, swine flu infection can be serious. In September 1988, a previously healthy 32-year-old pregnant woman in Wisconsin was hospitalized for pneumonia after being infected with swine flu and died 8 days later. A swine flu outbreak in Fort Dix, New Jersey occurred in 1976 that caused more than 200 cases with serious illness in several people and one death.

What is CDC doing in response to the outbreak?

April 29, 2009, 10:55 PM ETCDC has implemented its emergency response. The agency’s goals are to reduce transmission and illness severity, and provide information to help health care providers, public health officials and the public address the challenges posed by the new virus. CDC continues to issue new interim guidance for clinicians and public health professionals. In addition, CDC’s Division of the Strategic National Stockpile (SNS) continues to send antiviral drugs, personal protective equipment, and respiratory protection devices to all 50 states and U.S. territories to help them respond to the outbreak.

What epidemiological investigations are taking place in response to the recent outbreak?

CDC works very closely with state and local officials in areas where human cases of H1N1 (swine flu) infections have been identified. In California and Texas, where EpiAid teams have been deployed, many epidemiological activities are taking place or planned including:

• Active surveillance in the counties where infections in humans have been identified;
• Studies of health care workers who were exposed to patients infected with the virus to see if they became infected;
• Studies of households and other contacts of people who were confirmed to have been infected to see if they became infected;
• Study of a public high school where three confirmed human cases of influenza A (H1N1) of swine origin occurred to see if anyone became infected and how much contact they had with a confirmed case; and
• Study to see how long a person with the virus infection sheds the virus.

Source: http://www.cdc.gov/swineflu/swineflu_you.htm

For previous Part II of this series go to http://moldandasbestos.blogspot.com/2009/04/swine-flu-questions-part-ii.html