Paramedic National Registry Complete Practice Exam

Question: 1 / 400

Which disease is considered the most communicable?

Influenza

Hepatitis C

Hepatitis B

The most communicable disease among those listed is measles. Measles is an extremely contagious viral disease that can spread easily through respiratory droplets. An infected individual can transmit the virus to others from four days before to four days after the rash appears. The virus can remain in the air for up to two hours after an infected person leaves a room, and about 90% of non-immune individuals who are exposed to the virus will become infected.

Influenza is also highly contagious, but its transmission and incubation period are not as potent as measles. Hepatitis B and C, while they can be transmitted from person to person, typically involve direct blood-to-blood contact or sexual transmission, which are less efficient routes compared to respiratory droplet spread. Hence, measles is recognized as the most communicable disease in this context.

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Measles

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