Even Australia’s most fearsome predators aren’t all safe from the stinging bites of mosquitoes. A vaccine could help.
) can develop skin lesions called pix as a result of a pesky mosquito bite, and further transmit the virus.Scientists are a bit unsure how a mosquito can bite the tough hide of a saltwater crocodile. Some experts believe that it could be that the thinner membranes around the crocodile’s eyes and inside the mouth are easier for mosquitoes to penetrate and then release the virus.
“We were very pleasantly surprised that our vaccine produced such a robust protective immunity in crocodiles,” Hall tells. “All our previous studies with this type of vaccine had been in mammals and we were not sure what the response would be like in a cold-blooded reptile.” One reason that scientists are so concerned about the skin lesions on crocodiles is that in Australia,. “Crocodiles contract the infection from mosquitoes in both farmed and wild environments,” Hall says. “However, there is good evidence that in some cases, infection can also pass directly from crocodile to crocodile in a farm situation – this is less likely to occur in the wild where the density of animals is much lower and direct contact less frequent.
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