Peter Hotez and Maria Elena Bottazzi used an oldie-but- goodie technology to devise a vaccine that's easy to make — and relatively cheap. India has already ordered 300 million doses.

The program called COVAX was set up to make sure that all countries have access to COVID vaccines. Two key public health figures talk about what went wrong — and how to fix it.

Vaccines still do a solid job at warding off hospitalization from omicron. So if you're young and healthy, why get a booster? Scientists explain how boosters help and the best timing to get one.

Public health and government officials sighed with relief when COVID-19 vaccinations came to Coastal Georgia last December. The first 84,000 doses were set aside for those working in health care, including Dr. Kathleen Toomey, the commissioner for the Georgia Department of Public Health.  

She spoke after receiving her first shot, saying vaccination felt like the "light at the end of a tunnel" after a long, hard year.

Vaccine and booster side effects can include fever, aches and fatigue. And this may be the first vaccine in history where people complain if they don't experience side effects, says one doctor.

In small studies in South Africa and in Germany, the results indicate a marked decrease in the ability of vaccines to neutralize this variant. But there are other findings that are encouraging.

The second time Vanessa Quintero's family caught the virus, probably from her 8-year-old daughter, fewer people got sick. They and their doctors credit the protection of vaccination.

Citing the high costs associated with Covid illnesses, a growing number of employers are telling employees who decline to be vaccinated to pay up.

Does a booster shot mean that you can go back to ... normal? Or is there still a newish kind of normal to face?

Watch an expert panel discuss the latest developments and challenges in the COVID-19 pandemic livestreamed at noon ET on Friday.

The companies say a study of more than 10,000 volunteers showed a vaccine efficacy of 95% or greater for people receiving the booster.

Some experts worry "boostermania" is distracting from the goal of getting tens of millions of unvaccinated Americans their first shots.

Physicians weigh in on what you need to know about the safety and efficacy of the vaccine, and how to think about the risks and benefits of vaccinating your kid

The Centers for Disease Control and Prevention reports that both infection-induced and vaccine-induced immunity are durable for at least six months — but that vaccines are more consistent in their protection and offer a huge boost in antibodies for people previously infected.

A small number of health workers are protesting for global vaccine equity. Their demonstrations echo the call for equal distribution of HIV medications decades ago — but there are key differences.