Children aged 6 months to 5 are now eligible to receive the Pfizer and BioNTech SE and Moderna COVID-19 vaccine. Here's what parents need to know.

Children aged 6 months to 5 are now eligible to receive the Pfizer and BioNTech SE and Moderna COVID-19 vaccine. Here's what parents need to know.

The FDA’s authorization of COVID-19 shots for children ages 6 months to 4 years will bring relief for millions of parents. Pending CDC endorsement, shots for this group will be available within days.

Monkeypox, endemic to Africa, has started showing up in other countries, including the United States. But how worried should you be? Two experts weigh in.

COVID vaccines provide protection, but immunity wanes over time. Researchers found a drop from 83% after the first month to 22% after five or more months.

A new generation of vaccines and boosters against SARS-CoV-2 may take a page from the anti-influenza playbook, with shots periodically tailored to target the most commonly circulating virus strains.

The immortal cancer cells of Henrietta Lacks revolutionized the fields of science, medicine and bioethics. And they still survive today, more than 70 years after her death.

Belonging to one or more groups with long-standing social and economic disadvantages increases the risk of cancer diagnoses and death.

The COVID-19 vaccines continue to be effective against severe illness leading to hospitalization and death in all age groups, including children ages 5 to 11.