Unformatted text preview: susceptibility reaches about 40%. The source of the virus is human (respiratory) secretions. Disease generally affects those in the 4-7 year age group. The incidence of SSPE is about 6-20 per million. • RSV: Also endemic worldwide, epidemics occur yearly, usually between January and March. Reinfection is common. The source for infection is the human respiratory tract and disease is usually contagious about 4-5 days after the symptoms. Most infants experience upper respiratory infections but between 15% and 50% experience lower (more serious) respiratory infections....
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This note was uploaded on 11/05/2011 for the course BIOLOGY MCB2010 taught by Professor Jessicadigirolamo during the Fall '10 term at Broward College.
- Fall '10