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Damian McNamara People who get reinfected with the virus that causes COVID-19 have more health risks with each round of reinfection, a large national database study reveals. Researchers saw worse health effects during active infection, but some symptoms lasted as long as 6 months, suggesting a direct link between reinfection... read more →

LAURA UNGAR and ANIRUDDHA GHOSAL  The quickly changing coronavirus has spawned yet another super-contagious Omicron mutant that’s worrying scientists as it gains ground in India and pops up in numerous other countries, including the United States. © Provided by LA TimesA nurse prepares to administer a COVID-19 shot at a private... read more →

Alice Park  On June 28, a panel of experts convened by the U.S. Food and Drug Administration (FDA) voted 19 to 2 to change the vaccines that have been used since December 2020 to protect against COVID-19. © Dinendra Haria/SOPA Images/LightRocket—Getty ImagesA health worker draws the Moderna COVID-19 vaccine as she... read more →

Gitanjali Poonia Omicron variants are driving new infections across the world, proving to evade antibodies. © Illustration by Alex Cochran, Deseret NewsIllustration of the omicron variant. Why it matters: Preliminary research from the University of Tokyo suggests that the alpha and delta strains produced more severe illnesses compared to omicron, which creates... read more →

There's a new omicron subvariant taking over: BA.5. Scientists expect it will soon be responsible for most COVID-19 infections. But how dangerous is it? And what protection can vaccines offer? Due to the global increase in coronavirus cases caused by the BA.5 subvariant, the World Health Organization (WHO) currently classifies... read more →

 Andrea McCollum, the poxvirus epidemiology team lead in the CDC’s division of high consequence pathogens and pathology, had many answers. Do we know how efficient monkeypox virus is at transmitting from person to person? Monkeypox is transmissible really from the time when signs or symptoms appear, throughout the entire course... read more →

This electron microscopic image depicts a monkeypox virion.CDC/ CYNTHIA S. GOLDSMITH Monkeypox appears to have exploded out of nowhere in the past two weeks, spreading across Europe, the Americas, and other regions. But warning signs appear to have gone unheeded. An unusual and long-running outbreak in Nigeria should have served... read more →

BA.2.12.1 -- a highly contagious sub lineage of the BA.2 omicron subvariant that now accounts for 57.9% of all cases, according to CDC estimates. Monitoring Variant Proportions SARS-CoV-2, the virus that causes COVID-19, is constantly changing and accumulating mutations in its genetic code over time. New variants of SARS-CoV-2 are... read more →

A new tool from the Centers for Disease Control and Prevention makes the process of determining what to do with your COVID-19 exposure or possible symptoms much easier. The tool, called the COVID-19 Quarantine and Isolation Calculator, takes information about when you were exposed to COVID-19, any symptoms you might have... read more →

As we get a better handle on the virus, masking and restrictions for COVID-19 are lifting around the country in a first step towards a return to normalcy. But that doesn't mean COVID-19 is any less dangerous. While the number of COVID cases appears to be dropping, this decline comes alongside a... read more →