Investigators in Chile conclude that the lambda COVID-19 variant is not only more infectious than standard SARS-CoV-2, but could also possibly shrug off vaccines. The first case in the United States has been spotted at Houston Methodist Hospital.

A full course of two of the most widely available coronavirus vaccines is about as effective against the more contagious delta variant as it was against a previously dominant version of the virus, according to a study published in the New England Journal of Medicine.

Many factors influence our risk of illness from SARS-CoV-2, the coronavirus responsible for COVID-19. That includes being careful to limit our possible exposures to the virus, as well as whether we have acquired immunity from a vaccine or an earlier infection. But once a person is infected, a host of other biological factors, including age and pre-existing medical conditions, will influence one’s risk of becoming severely ill.

Scientists have harnessed CRISPR gene-editing technology to block the replication of the novel coronavirus in human cells — an approach that could one day serve as a new treatment for COVID-19.

To date, there are no effective antidotes against most viral infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method.

Some Canadians are experiencing more intense reactions after a second dose of a COVID-19 vaccine, and experts say that’s to be expected. The usual side effects people feel after vaccines, including fever, soreness, and headache, can feel stronger following the second dose. That’s been the case for many people around the world.

China emulated US techniques to construct novel coronaviruses in unsafe conditions.

A new map shows how human actions are affecting outbreak risks, sometimes in surprising places, which could be a valuable tool in preventing the next pandemic.

A few dozen human genes rapidly evolved in ancient East Asia to thwart coronavirus infections, scientists say. Those genes could be crucial to today’s pandemic.

A coronavirus epidemic broke out in East Asia around 25,000 years ago, and the evidence is in our genes. Researchers say the finding could shed light on how to fight COVID-19.

Nature examines arguments that the coronavirus SARS-CoV-2 escaped from a lab in China, and the science behind them.

NEIDL, Broad scientists say next-generation vaccines could stimulate another arm of the immune system, imparting better protection against coronavirus variants

The Covid-19 pathogen has a genetic footprint that has never been observed in a natural coronavirus.

Scientists say that two common strains of the seasonal flu have seemingly vanished from circulation, likely due to public health measures like mask-wearing meant to slow the covid-19 pandemic. Though it will take time to confirm the disappearing act, the unexpected good news could make developing next season’s flu shot all the easier.

Vaccination alone might not be enough to end the Covid-19 pandemic, researchers reported Tuesday. Even with a majority of the population vaccinated, the removal of pandemic precautions could lead to an increase in virus spread, the researchers reported in the medical journal JAMA Network Open.

The messenger RNA technology used to make Moderna's and Pfizer/BioNTech's wildly successful coronavirus vaccines is being tested not only in other vaccines, but as a cancer treatment, gene therapy and more.

One of the Big Questions about SARS-CoV-2, the virus that causes COVID-19, has for a while been about its origins. Most viruses that cause disease in humans have long, fascinating origin stories, with jumps from animal to animal until they finally ma

Animal suffering not only harms other species, it endangers our own. Here's how we can do better.

Moderna scientists and executives laid out their plans to combat new strains of the virus that causes Covid-19 at a virtual investor event on Thursday, saying that new waves of the epidemic are on their way. “As the virus spreads, it is rapidly mutating,” the company’s chief scientific officer, Melissa Moore, said on the call. “Some of these new viral strains appear to be even more transmissible than the original strain… We already know that some of these new strains are less susceptible to neutralization by our current vaccine.”

IOC member John Coates has said the Olympics could be held even under a COVID-19 state of emergency, an opinion the union's leader said was infuriating.