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H1N1 Flu Update

Ample supplies of the H1N1 vaccine have now been shipped to states, according to the Centers for Disease Control and Prevention (CDC), so it is no longer reporting on the status of state supplies or orders shipped.

Up to now priority had been given to the cohorts of people who are most prone to this type of flu but, the CDC is now encouraging all people who want the vaccine to get it, including people 65 years old and older.

Flu Update

Latest reports from the CDC indicate that H1N1 flu activity in the U.S. has declined and is elevated in only one region. The CDC is reporting that it underestimated cases in 2009. With better surveillance tools, it now says that in 2009 there was a wide range of hospitalized cases and deaths, with mid-level estimates of 246,000 hospitalized cases and 11,160 deaths in 48 states. The novel swine flu virus differs from the seasonal flu virus in that most of the people who have gotten sick are young—5 to 24 years old. Most of the people who have been hospitalized had underlying conditions that increased their risk of developing complications, such as pneumonia.

For the bleeding disorders community, it is important to note that the virus does not pose a threat to the safety of plasma-derived clotting factor products. Influenza is a lipid-enveloped virus that is inactivated by a variety of steps in the manufacturing processes used for all licensed products. In addition, prospective plasma donors who show symptoms of flu during the screening process are deferred from donating. The fact that no case of influenza transmitted by transfusion has been reported in the scientific literature is a strong indicator of the safety of the current system.

CDC and HHS Web Info

The CDC has created a Web page with up-to-date information on the H1N1 virus, including prevention information and other guidance. The page can be found at:

The U.S. Department of Health and Human Services has created the Web site:, to provide information on H1N1, avian and pandemic flu.

Treatment Guidelines for Healthcare Professionals

The CDC is also providing guidance for healthcare professionals treating individuals who are confirmed to have contracted H1N1 or have been exposed to it. This information can be found at:


Experts do not believe that people living with HIV or AIDS are at increased risk for contracting flu. However, individuals with low CD4 cell counts who do contract flu may be at greater risk for complications, including lower respiratory tract infections and pneumonia. Specific information on this subject geared to clinicians is available from the CDC at:

Plasma Supply

Although there are no current supply issues, if H1N1 continues to spread and large numbers of donors are deferred, it is possible that the supply of plasma and products could eventually be affected. NHF will work closely with industry and appropriate government agencies to monitor and address this situation if it becomes an issue.

Flu and You

Individuals who show flu symptoms are encouraged to contact their primary care or hemophilia treatment center physician.

NHF will try to keep the community informed of any new developments.



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