People can develop temporary natural immunity after recovering from COVID-19. However, vaccines are the best way to train the immune system to recognize viruses. When a vaccinated person encounters ...

EXCLUSIVE: GOP senators are calling on the Biden administration to publicize data on the effectiveness of natural immunity in preventing additional cases of COVID-19, arguing the White House is too ...

More than two years after COVID-19 was first detected, errant attempts to compare the virus to the flu continue to spread on social media. That happened again recently when Facebook users resurfaced a ...

GALVESTON, Texas (KTRK) -- UTMB researchers have studied the new COVID-19 variant and their findings reveal troubling data for unvaccinated individuals with previous infections. Unvaccinated ...

The Lancet has reported that a prior COVID-19 infection is just as effective as two doses of a mRNA vaccine at preventing reinfection and serious illness. Pictured: Protester in Los Angeles rallying ...

Wonder Land: The weaponization of 'science' began with climate policy and accelerated with Covid-19. Now many think it's all misinformation. Images: AFP/Getty Images Composite: Mark Kelly ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Related video: Ohio health officials give ...

A study by the Centers for Disease Control and Prevention released on Wednesday shows that those who have recovered from COVID-19 have more protection against infection than those who have only been ...

Natural immunity due to COVID-19 infection provides strong protection against reinfection and serious illness for several months after initial infection, but immunity wanes over time, a new study has ...

For at least 10 months after a COVID-19 infection, your immune system can provide good protection against symptomatic illness the next time around, a new study found, and the risk of severe illness is ...

Public health officials have been struggling to persuade eligible Americans to get their COVID-19 booster shots. New research could help them make the case that the extra dose will provide ...