infectious disease, vaccine

A recent study elucidates some of the changes that occur in the body after inoculation with a tuberculosis vaccine.

As researchers test existing vaccines for nonspecific protection against COVID-19, immunologists are working to understand how some inoculations protect against pathogens they weren’t designed to fend off.

We asked experts for measures people can take that may help boost defenses against COVID-19 and other respiratory diseases.

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A study of Nicaraguan children links prior Zika virus infection with aggravated dengue fever symptoms.

Some researchers express skepticism given the lack of data about the vaccine’s safety and efficacy, and the country plans to vaccinate healthcare workers, teachers, and others even before testing is complete.

A clinical trial of the shot in eight volunteers suggests that it is safe and that it generates antibodies that neutralize SARS-CoV-2, but further testing is needed, scientists say.

Find the latest updates in this one-stop resource, including efficacy data and side effects of approved shots, as well as progress on new candidates entering human studies.

Rhesus macaques can be infected with SARS-CoV-2, leading primate center scientists to try to prevent outbreaks in their colonies, especially as experiments on coronavirus start.

Random mutations in the SARS-CoV-2 pathogen’s genome help researchers track the spread and transmission of COVID-19, the disease it causes.

Critics of the practice say the guidance is irresponsible and could give users a false sense of security.

The study showed that a vaccine combining a variety of immune-stimulating components was no more effective than a placebo.

With millions of pigs killed due to a major outbreak of African swine fever virus in Asia, researchers have intensified efforts to find a vaccine quickly.

A devastating outbreak of the virus across East Asia has made the long-neglected pathogen a top research priority, but many challenges lie ahead.

Health officials are rushing a genetically engineered product into the field to counter uncontained outbreaks of vaccine-derived polio.

In rare instances, the live virus in oral polio vaccines can mutate and become infectious, causing new outbreaks.

Merck’s Ervebo gets its first regulatory greenlight. A decision from the US Food and Drug Administration is expected in the next few months.

TAK-003 appears to avoid the safety issues seen with an existing vaccine, but experts say a longer evaluation is needed.

Researchers aim to deploy the trial in neighboring Democratic Republic of Congo, which has been ravaged by Ebola for a year.