A virus: Measles is a contagious disease cause by a virus.
Answered 9/28/2016
6.7k views
Single viral strain: Measles is caused by a virus with only 1 known strain & humans as the only known source. Infection is passed by contact with infected fluid on surfaces or in the air from a sneeze or cough. Immunization has reduced the case numbers when used, but is not 100% efective after 1 dose. Ease of international travel & transmission during incubation results in clusters of new cases every year.
Answered 9/17/2017
6.5k views
A doctor has provided 1 answer
8 doctors weighed in across 2 answers
A doctor has provided 1 answer
7 doctors weighed in across 2 answers
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