A team of researchers, led by the University of Houston, has discovered two new ways of preventing and treating respiratory viruses. In back-to-back papers in Nature Communications, the team—from the lab of Navin Varadarajan, ...
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Scientists have developed a new, safe and effective way to infect volunteers with the parasite that causes leishmaniasis and measure the body's immune response, bringing a vaccine for the neglected tropical disease a step ...
Aug 2, 2024
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Vaccines are safe and effective, and help reduce death and illness. But global vaccination rates are suboptimal and have trended downward, leaving humanity more vulnerable to vaccine-preventable diseases such as COVID-19, ...
Aug 1, 2024
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The lightning-fast development of COVID-19 vaccines just months after the virus appeared was a triumph of modern science and saved millions of lives. But for all the good they did in reducing illnesses and deaths, the shots ...
Jul 31, 2024
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The nose is a major gateway to our bodies—for the air we breathe, the aromas we smell and the microbes that make us sick. On its way in, the air passes through nasal conchae, or turbinates—the long, narrow, curled shelves ...
Jul 31, 2024
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A new study, published today in Nature Communications and involving nearly the whole adult population of England, has found that the incidence of heart attacks and strokes was lower after COVID-19 vaccination than before ...
Jul 31, 2024
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Infecting volunteers with malaria reveals why some get sick and others don't—and points to ways to induce stronger immunity through vaccination.
Jul 30, 2024
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A bad case of the flu during pregnancy can increase the risk for fetal neurodevelopmental disorders such as schizophrenia and autism spectrum disorder. But it's not the virus itself doing the damage; it's the mother's immune ...
Jul 29, 2024
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A study of more than 200,000 people by researchers at the University of Oxford found at least a 17% reduction in dementia diagnoses in the six years after the new recombinant shingles vaccination, equating to 164 or more ...
Jul 25, 2024
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mRNA vaccines contain instruction codes for making parts of pathogenic viruses. Can so-called self-amplifying types of such vaccines form unwanted and dangerous connections with other viruses? Yes, say Wageningen virologists ...
Jul 25, 2024
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A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains a small amount of an agent that resembles a microorganism. The agent stimulates the body's immune system to recognize the agent as foreign, destroy it, and "remember" it, so that the immune system can more easily recognize and destroy any of these microorganisms that it later encounters.
Vaccines can be prophylactic (e.g. to prevent or ameliorate the effects of a future infection by any natural or "wild" pathogen), or therapeutic (e.g. vaccines against cancer are also being investigated; see cancer vaccine).
The term vaccine derives from Edward Jenner's 1796 use of the term cow pox (Latin variolæ vaccinæ, adapted from the Latin vaccīn-us, from vacca cow), which, when administered to humans, provided them protection against smallpox.
This text uses material from Wikipedia, licensed under CC BY-SA
