Sentences with phrase «human host»

The phrase "human host" refers to a person who is harboring or allowing something, such as a disease or parasite, to exist or grow inside their body. Full definition
Today, most countries manage the disease with a drug that kills the parasite in human hosts.
Then you would have to expose those strains to a chain of human hosts.
The parasite responsible for malaria requires human hosts to spread.
They feed on blood and are found in cool conditions — usually in mattress seams, sheets and other areas near human hosts.
The DNA within the same species of bacteria from two different human hosts can be wildly different.
They feed on blood and are found in cool conditions — usually in mattress seams, sheets and other areas near human hosts.
Results were achieved using advanced computational methodologies to analyze genomic data of the pathogen taken from human hosts.
The fungus that causes athlete's foot and other skin and toenail infections may have lost its ability to sexually reproduce as it adapted to grow on human hosts.
Sripa and co-author Pierre Echaubard of the Global Health Asia Institute argue that a flaw of early campaigns was that they focused exclusively on the medical relationship between human host and liver fluke parasite.
Much is known about flu viruses, but little is understood about how they reproduce inside human host cells, spreading infection.
Our scientists also continue to investigate the mechanisms by which HIV integrates and replicates within human hosts, while evading the host immune system.
Mosquito - borne illnesses need human hosts to continue to spread.
Achtman says that analyses limited to human samples are lacking because they don't examine the cholera always circulating in the environment, outside human hosts.
The nymphs quest, or move to the tips of long grass and brush to wait for their next blood meal to wander by: a dog, a deer, or that accidental human host.
In the South, they are generally buried too deep in leaf litter — to avoid the heat — to get at human hosts.
Perhaps the most familiar example is rabies, which can cause human hosts — like other mammals — to salivate excessively, thereby spreading the deadly virus.
The movement of millions of people, monitored through their cellphones, has shed new light on how malaria is transmitted via human hosts in Kenya.
Chemical communication enables bees to distinguish cousins from strangers, coordinate attacks on hive intruders and, in their own sort of way, be as social as the best human host or hostess.
After repeated cycling through human hosts, a strongly transmissible strain could develop.
«Our work provides evidence that human hosts become more attractive to malarial mosquitoes during infection,» says Mike Birkett, a chemical ecologist in the Department of Biointeractions and Crop Protection at Rothamsted.
It is set in a world that has been virtually decimated by four waves of violent extra-terrestrial attacks; the first of which saw power supplies shut down, the second unleashed a deadly virus, the third saw floods wipe out large areas and the fourth was a widespread ground invasion in which the marauding aliens began to take human hosts.
How does a parasite that possesses human hosts turning them into zombies not fit a universe where incorporeal beings walk the earth?
Paul Ewald points out that any conditions allowing germs to be transported from a person immobilized by serious illness to new human hosts can produce deadly infections.
S. haematobium eggs secrete proteins, including IPSE, that ensure human hosts are not so sickened that they succumb to hemorrhagic cystitis,» says Michael H. Hsieh, M.D., Ph.D., senior author of the study published April 3, 2018, by The FASEB Journal.
This led us to conclude that the strains infecting humans originated in cows and that they had evolved from bovine to human host jumps,» says Fitzgerald.
Thus, despite hints that it had begun to adapt to human hosts rather than its natural bird hosts, H7N9 does not appear to pose an imminent threat of a human pandemic.
Pepperell says the key message from the results, published today in the Proceedings of the National Academy of Sciences, is that TB can spread widely and persist at almost unnoticeable levels until stressful conditions, such as crowding or poor nutrition, weaken human hosts and give the bacteria a leg up.
In that context, the goal of this project is to infect relevant human host cells (monomacs, neuronal stem cells and differentiated neurons) with parasites of differing lineages to generate transcriptional mRNA and miRNA profiles.
The gastrointestinal tract is a dynamic interactive barrier that normally segregates microbial populations from their cognate human hosts.
Characterization of Helicobacter pylori genetic evolution within a single human host.
LA JOLLA — Salk Institute scientists have solved the atomic structure of a key piece of machinery that allows HIV to integrate into human host DNA and replicate in the body, which has eluded researchers for decades.
Surrogates is based on Robert Venditti's comic book miniseries from 2005, which depicts a futuristic society in which the military has conducted wars through the use of «surrogates», or humanoid robots that are fully controlled by human hosts remotely.
Protozoan species of the genus Cryptosporidium, such as Cryptosporidium hominis and C. parvum, can cause diarrhea in human hosts who have ingested as few as 10 microscopic oocysts (egglike structures that are made of chitin, the same protein that forms the exoskeletons of ants and other insects) contained in feces or contaminated water.
If you thought the sex lives of humans were complicated, consider the case of the female Aedes aegypti mosquito, bringer of Zika, dengue, and yellow fever: She mates but once, in seconds and on the wing, with one lucky male; spurns all further advances from other potential suitors; and stores enough sperm from that single encounter to lay more than 500 eggs, which she nourishes with the blood of human hosts.
Regulatory T - Cells at the Interface between Human Host and Pathogens in Infectious Diseases and Vaccination.
Even worse, in human hosts, roundworms sometimes get lost and leave the intestine (this is known as «visceral larval migrans»), in which case the worms can wind up in the eye or brain, resulting in irreversible damage.
Proteins on the surface of both the Plasmodium sporozoite and human host cells are likely to be important in this journey, but little is known about the exact interactions which occur.
The nymphs then quest, moving to the tips of long grass and brush to wait for their next blood meal to wander by: a dog, a deer, or that accidental human host.
After thousands of years of inadvertent selection for «tameness» the camp wolves started to become dependent on their human hosts and to even look different to their still wild ancestors.
If and when we are ever visited by an alien civilization, I can imagine one of the creature staring incredulously at the Vatican or wailing wall and asking its human hosts, «so, you REALLY thought it was all about you?»
After hundreds or thousands of years of inadvertent selection for «tameness» the camp wolves started to become dependent on their human hosts and to even look different to their still wild ancestors.
The tamer, less aggressive wolves were less afraid of human interaction and less likely to harm their human hosts.
Parasites love their human hosts, because they get to take all the nutrients that should be helping baby and mom stay healthy, and greedily keeping it all to themselves.
When a human host is bitten by an infected mosquito, the parasite (Plasmodium) enters the blood and lays inactive in the liver.
The team was even able to estimate the age of one of the human hosts from one sample's recovered bacterial DNA.
The study of the new strain's genetic structure might also lead researchers to a better understanding of how the microbe adapts itself to human hosts.
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