Q. Lyme disease can be spread through which mode of transmission?
1. Through the air (Lyme disease is an airborne disease).
2. Through the water (Lyme disease is a waterborne disease).
3. Through the bite of infected ticks.
4. Through the bite of infected mosquitos.
Answer: 3 (Through the bite of infected ticks).
Explanation: Borrelia burgdorferi is a bacterium that causes Lyme disease once it entered the blood circulation of a healthy person. Ticks are the major carriers for the bacteria to infect individuals.
Ticks get B. burgdorferi from feeding on an infected animal host during any of the three life-cycle stages and keeps this bacteria in their midgut.
Unless the tick bites an infected person before biting another host, an infection cannot result from that tick bite. Even if the ticks have previously bitten an infected person or animal and then bite an infected host, the host will not get the infection.
There is an exception, mice are not susceptible to Lyme disease, but they do carry the B. burgdorferi. Hence, Mice have been considered as infested rather than infected. Deers are also not susceptible to Lyme disease.
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