Heartworms are only transmitted by the bite of an infected mosquito. In rare cases, people can get heartworms after being bitten by an infected mosquito. But because people are not a natural host for heartworms, the larvae usually migrate to the arteries of the heart and lungs and die before they become adult worms. 22 авг. 2019 г.
What is the vector for transmission of heartworm disease?
Heartworm is spread by mosquitoes that bite an infected host and then pass the parasite to another host during a blood meal. Aedes, Anopheles, and Mansonia species of mosquito are all capable of transmitting heartworm.
How do heartworms travel?
An earthworm moves using circular and longitudinal muscles, as well as bristles called setae. The earthworm can push the setae out of its body to grab the soil around it. To move forward, the worm uses its setae to anchor the front of its body and contracts the longitudinal muscles to shorten its body.
How does a heartworm enter a host?
Heartworms get into the bloodstream of both humans and dogs through mosquito bites. Heartworms in the blood of an infected animal reproduce in the gut of the mosquito after a blood meal. Then, they get carried over to another host by the mosquito and are passed during feeding.
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