Because of colder weather and subsequently the increasing frequency of close contact with other people indoors, peak flu activity occurs between early January to April.  And while the cold weather doesn't make us sick, it may provide an atmosphere for the flu virus to spread.  When we're cold, our bodies work hard just to maintain a normal temperature which may sap energy used to fight off infection.  Stay ahead of the flu bug by checking the status of flu in your area at www.weather.com.  The local flu reports are updated daily and come from a network of trained physicians who track the flu virus in their communities and practices.