A vaccine is a biological preparation that provides immunity to a specific disease. It usually contains a weakened or inactive form of the disease which then stimulates the body's immune system to recognize it as a threat and destroy it, giving it the means to destroy any further versions of it that it may encounter in the future.
Vaccines have been proven to be the most effective method of preventing and eradicating infectious diseases. The complete eradication of smallpox and significant reduction of polio, measles, and tetanus have proven as such.
Vaccines lead to a phenomenon known as "herd immunity" in which diseases cannot spread with ease as the majority of a population are vaccinated. However, herd immunity can only work if a certain percentage of the population is vaccinated.
Most vaccines are delivered via injection, although notable exceptions include the polio vaccine which is often delivered orally. This method was found to have certain advantages as it allowed for administration by staff without formal training, and reduced the risk of blood contamination.
For many people, the arbitrary nature of the pandemic, with tough rules one day about things like masks, and then rules discarded the next, has left an imprint.
The researchers decided to work with a novel type of vaccine delivery based on patches about the size of a thumbnail that contain hundreds of microneedles.
In 52 of the 55 countries surveyed, the public perception of vaccines for children declined between 2019 and 2021.
The results add data details to partial findings released by the companies in December.
World-renowned Hebrew University cancer researcher urges caution about claimed ‘breakthrough’ and terminology.
The lawsuit by Arbutus and Genevant says Pfizer/BioNTech engaged in licensing discussions for the technology but they did not "result in a settlement."
Pfizer’s COVID-19 vaccine was the first shot approved by the US Food & Drug Administration (FDA) for Emergency Use, and Israel was the first country to mass vaccinate its population.
Netanyahu wasted a huge amount of money on developing an Israeli COVID vaccine at a lab unsuited for the job – and it failed anyway.
The multi-institution study, published in the peer-reviewed academic journal Current Biology, sheds light on the link between sleep duration and antibody response.
The World Health Organization reported that as many as 5 million people suffer from severe cases of influenza each year.
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