Why are some people at increased risk of severe illness from H1N1 influenza 09 this winter?
This winter, H1N1 influenza 09 will continue to spread within the population of NSW, along with other influenza viruses seen each winter. The H1N1 influenza 09 virus produces a mild illness in most, a severe illness in some, and is a moderate illness overall. Because there is little immunity to this virus in the community, it is likely more people will become sick with influenza-like illnesses this winter, compared to usual winters. This winter, it will be particularly important for people at increased risk of severe illness from influenza to seek medical attention early if they develop symptoms. What are the symptoms of flu? The symptoms of H1N1 influenza 09 are similar to the symptoms of normal seasonal influenza (fever, chills, cough, sore throat, tiredness, muscle aches),and some people have also complained of vomiting and diarrhoea. H1N1 influenza 09 can result in breathing difficulty and pneumonia. Symptoms generally appear between two to four days after exposure. For further gen
