H1N1 Update. September 11, 2009 Savannah Chatham School Nurses. What exactly is H1N1?. Novel Influenza A (H1N1) is a new flu virus of swine origin that was first detected in April 2009. It continues to infect people and spread from person to person.
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September 11, 2009
Savannah Chatham School Nurses
Pandemic“Spanish flu” H1N1The most devastating flu pandemic in recent history, killing more than 500,000 people in the United States, and 20 million to 50 million people worldwide.
Novel H1N1 influenza shares characteristics
with seasonal flu, and studies have shown
that with seasonal flu people may be
contagious from one day before they
develop symptoms to up to 7 days after they
Basically, no different than seasonal influenza
The transmission of novel H1N1 is similar to seasonal flu -
Spreads through coughing or sneezing of infected people
Some people may become infected by touching something with flu viruses on it and then touching their mouth, nose or eyes.
Percentage of Visits for Influenza-like Illness (ILI) Reported by the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet),
National Summary 2008-2009 and Previous Two Seasons
persons with chronic medical and immuno-
adults > 64 y.o.
When it comes to protecting people from influenza, vaccines are an important tool!
Seasonal vaccine still important but will not protect from H1N1
Ongoing Surveillance Activities
Vaccination (Seasonal and H1N1)/Mass Vaccination Planning
Community Education and Preparedness