Public health officials are transforming spacious, open-air venues like Disneyland into "mega-site" vaccination centers.


Eight Unusual Covid-19 Vaccination Sites Around the World

From Disneyland to a Singapore airport, these are some of the surprising places being used as immunization centers

Scientists at the National Black-footed Conservation Center in Colorado inoculated 120 black-footed ferrets against the coronavirus that causes Covid-19.

Experimental Covid-19 Vaccine Reaches America's Endangered Ferrets

Black-footed ferrets are close relatives of minks, which have seen coronavirus outbreaks on fur farms

“He is setting a fine example for the youth of the country,” said a public health official after the King of Rock 'n' Roll received a vaccine on the set of “The Ed Sullivan Show” in October 1956.


How Elvis Helped America Eliminate Polio

The rock star's much-publicized vaccination inspired reluctant U.S. teens to get inoculated

A nurse administers the Pfizer-BioNTech COVID-19 vaccine to a patient in London on December 8. Some experts say the fastest way to test second-generation COVID-19 vaccines is through human challenge trials.

A Brief History of Human Challenge Trials

For more than two centuries, scientists have been intentionally infecting patients with dangerous diseases in order to learn more

The vaccination effort underway is the biggest in United States history.

Distribution Begins for First Covid-19 Vaccine Authorized in the United States

Pfizer-BioNTech’s vaccine received emergency use authorization from the FDA last week

In February, the Covid-19 pandemic halted polio immunization campaigns across Afghanistan and Pakistan, fueling a new resurgence of polio in children. Here, a young girl is given the polio vaccine in the Kabul Province in October after campaigns were resumed.


How Covid-19 Drove New Polio Cases in Afghanistan

Due to the pandemic, a total of 50 million children did not receive the polio vaccine in Afghanistan and Pakistan

But since 2010, the percentage of children around the world receiving the first vaccine has plateaued at around 85 percent; only 71 percent receive the second dose.

A Resurgence of Measles Killed More Than 200,000 People Last Year

Public health experts worry that vaccine availability will be further stalled by the Covid-19 pandemic

The vaccine candidate produced by Pfizer and BioNTech is stable at minus 94 degrees Fahrenheit, so Pfizer developed a suitcase-sized box that uses dry ice to keep between 1,000 and 5,000 doses that cold for 10 days.

Why the Most Promising Covid-19 Vaccines Require Super-Cold Storage

Both Moderna and Pfizer’s vaccines contain mRNA, which must be stored in frigid conditions

A researcher of Stermirna Therapeutics Co., Ltd. shows the experiment to develop an mRNA vaccine targeting the novel coronavirus in east China's Shanghai.

What Are mRNA Vaccines, and Could They Work Against COVID-19?

A technique never before used in humans may be the fastest way to a vaccine against the novel coronavirus

The squalene industry kills around 3 million sharks each year, and if squalene is used in a vaccine to treat everyone in the world, up to half a million sharks will be killed.

500,000 Sharks Could Be Killed in the Race to Produce a Covid-19 Vaccine

Vaccine developers seek a compound called squalene produced in shark livers

Vial and packaging for the 1957 H2N2 vaccine, at the National Museum of American History. Producing the inoculation required hundreds of thousands of fertilized chicken eggs per day.


How the U.S. Fought the 1957 Flu Pandemic

The story of the medical researcher whose quick action protected millions of Americans from a new contagion

Chincoteague ponies take a moment to graze after swimming across the Assateague Channel in 2015.

New Vaccine Offers Hope in Chincoteague Ponies' Battle Against Swamp Cancer

Over the past three years, the disease has claimed the lives of seven of the famously resilient ponies

Can you become immune to SARS-CoV-2?


What Scientists Know About Immunity to the Novel Coronavirus

Though COVID-19 likely makes recovered patients immune, experts aren't sure how long protection lasts

People cross Park Avenue after it was announced that some streets will be closed off as lockdown continues in response to the coronavirus outbreak on March 27, 2020 in New York City.


How—and When—Will the COVID-19 Pandemic End?

Americans have some time before social distancing measures can let up—and every day counts

The Baldwins' home was reconstructed in 1966 and is now a museum showcasing the missionary's life in the mid-1800s.

Archaeologists Unearth Remnants of Kitchen Behind Oldest House Still Standing in Maui

The missionary who lived in the house during the mid-1800s delivered vaccinations to locals during a smallpox epidemic

These are ten of the biggest strides made by scientists in the last ten years.

The Top Ten Scientific Discoveries of the Decade

Breakthroughs include measuring the true nature of the universe, finding new species of human ancestors, and unlocking new ways to fight disease

Microneedle patches, like this one that measures about a centimeter across, could be used to deliver nanoparticles when pressed to the skin for two minutes.

This Spiky Patch Could Invisibly Record Vaccination History Under Skin

But the technology raise several ethical concerns that could stymie its progress

Red blood cells imaged by a scanning electron microscope.

Harmful Bacteria Masquerade as Red Blood Cells to Evade the Immune System

Studying the stealthy strategy could help researchers develop new treatments for group A strep infections, which kill more than 500,000 people each year

Yersinia pestis, the bacteria that cause plague, survives on fleas that live on rodents, like rats and rabbits.

Three Cases of Plague Diagnosed in China

Officials say the risk of an outbreak is low, but many are concerned that information about the cases is being restricted

Yet Another Study Finds No Link Between Measles Vaccine and Autism

The new research looked at 657,461 children, including subgroups that are considered susceptible to autism spectrum disorder