Sentences with phrase «bitten a human host»

Although doctors officially have recorded only seven cases of new human infections in North America, a new study found that five of 13 kissing bugs collected from California and Arizona had bitten a human host — and many of the bugs they collected were infected with Chagas.

Not exact matches

When a human host is bitten by an infected mosquito, the parasite (Plasmodium) enters the blood and lays inactive in the liver.

Following introduction into mammalian hosts (including humans) by the bite of a sand fly, Leishmania parasites undergo extensive changes to adapt to survival and multiplication inside the new host cells and tissues.

Malaria causes the bodies of its human hosts to emit specific odours from the skin that make the hosts even more attractive to mosquitoes, which invites further bites and risks infection of more mosquitoes and wider transmission of the disease.

The model suggests that outbreaks are more likely in urban areas with higher human and mosquito population densities, in years with longer growing seasons, when infected travelers arrive early in the growing season, and when tiger mosquitos have fewer non-human hosts that result in wasted bites.

Discovering that this recombination occurs continuously when the parasites are in the human host may help to explain how the parasite can survive for many months inside infected people during the dry season, when there aren't many mosquitoes biting.

The bite itself as well as the alpha - gal that is transmitted to the human host triggers a person's immune system to make antibodies.

A chigger larvae can attach itself to a human host, though it isn't biting.

Typically picked up through head - to - head contact, head lice can crawl or jump from one host to another — they live in human hair and survive on blood by biting their host's scalp.

Although cats generally do not suffer from the infection, beyond possible fever, swollen glands, and some muscle aches, the infection can be passed to a human host when the infected cat scratches or bites a human.

If the treatment causes fleas to leave the host pet, the fleas may bite humans during the process of searching for another host.

Host susceptibility to infection varies greatly among the general population, with increased susceptibility seen in humans who are unvaccinated, very young or elderly, immunosuppressed, or pregnant or who have injuries (e.g., scratches, bite wounds) that pose a break in the normal defense mechanisms.3

Although fleas will bite humans, and sometimes live on humans, they much prefer cats, a much better host by far.

Dogs, cats and humans can all be infected with this intestinal parasite through the bite of a host flea.

But local irritation at the site of the bite is likely a common occurrence for both humans and pets and the irritation is likely to occur in either host.

If they can not find a host, they will bite a human for food.

Humans aren't the preferred host, but if cats and dogs aren't around, emerging adults may bite humans in theHumans aren't the preferred host, but if cats and dogs aren't around, emerging adults may bite humans in thehumans in the area.

(through drastic slashing of manufacturing technologies, draconian cap and trade taxation, repossession of private property, and a whole host of other proceedures of questionable value), and on the other, you have the alternative medicine quack that says «The pain is all in your mind» (EG, the non-scientists that say that human released carbon dioxide has no impact on the environment whatsoever, in spite of the fact that this is not supported by even the slightest bit of chemical evidence.)