Vaccines boost the immune system's ability to fight off diseases. Vaccines undergo rigorous testing to ensure safety and effectiveness. Widespread vaccination contributes to herd immunity, protecting ...

Herd immunity occurs when enough people become immune to a disease, either through vaccination or previous infection. This can reduce the likelihood of it spreading and increase protection for ...

An infectious disease specialist took the time to explain what herd immunity is, how it works and when it might affect the spread of COVID-19. Dr. Frank Esper works for the Cleveland Clinic Children's ...

On December 18, a San Diego emergency room nurse was given a shot of the COVID-19 vaccine. A week later, he tested positive for the virus, CNN affiliate KGTV reported. Stories like this will become ...

Vaccinations used to seem simple. Your doctor would tell you which to get, and you’d roll up your sleeve at the office or a nearby pharmacy. Now we’re seeing changing recommendations, and some people ...

Dengue, a mosquito-borne viral disease that infects an estimated 100 million people globally each year, is notorious for its unpredictable severity. Some people experience little more than a fever and ...

Yesterday we explored four key myths and why they don’t stand up to scrutiny: ‘Vaccines were never properly tested’ ...

Over the past two centuries, vaccines have been critical for preventing infectious diseases. The World Health Organization estimates that vaccination prevents between 3 million and 5 million deaths ...

Eliminating the spread of several infectious illnesses requires achieving strong population immunity. One successful and affordable strategy for boosting population immunity and combating vaccine ...

Back in the early 1900s, about one in five children died before entering kindergarten. The most common reason: infectious disease. Today, just one in 27 dies so young, most often because of an ...

Midwife Sarah Joy Owen's insights about the whooping cough and RSV vaccines in pregnancy and why she recommends them to all pregnant women.