Influenza: Hand Washing Is the Key to Prevention

Flu or influenza is caused by a virus that has been given the name influenza virion, belonging to the Orthomyxoviridae family. Enclosed in an envelope of spherical structure, the outer layer of the virus is a lipid membrane. The virus obtains this membrane from the host cells and uses it for growth.



via Copy of Diet & Health Tips copy http://EzineArticles.com/8161440