Because the flu is a virus, it is passed person-to-person. It is recommended that you stay at least one meter (3 feet) from possibly infected persons.

Because it is airborne, it is trapped by filtration at various efficiencies. Please see Chapter 10 in the NAFA Guide to Air Filtration, page 10.3 and use the MS2 phage percentage for capture efficiency.

Guidelines and updated from the WHO and the CDC can be found on the following webpages:

WHO
http://www.who.int/csr/don/en/

CDC
http://cdc.gov/swineflu/

Other recommendations from the CDC, for individuals:

> Influenza is thought to spread mainly person-to-person through coughing or sneezing of infected people.

> Take everyday actions to stay healthy.

> Cover your nose and mouth with a tissue when you cough or sneeze. Throw the tissue in the trash after you use it.

> Wash your hands often with soap and water, especially after you cough or sneeze.

> Alcohol-based hands cleaners are also effective.

> Avoid touching your eyes, nose or mouth. Germs spread that way.

> Stay home if you get sick. CDC recommends that you stay home from work or school and limit contact with others to keep from infecting them.

> Follow public health advice regarding school closures, avoiding crowds and other social distancing measures.

> Develop a personal emergency plan as a precaution. This should include storing a supply of food, medicines, facemasks, alcohol-based hand rubs and other essential supplies