Who is at risk of getting the 2009 H1N1 Flu?
Anyone who does not have immunity to this particular virus strain is at risk. Since this is a new flu strain, it was originally thought that there was no pre-existing immunity to the virus. According to the CDC there are indications that some older people may have pre-existing immunity. However, since it is not possible to know who may have pre-existing immunity, everyone who has not had the disease should be considered at risk.