Like many in her shoes, infectious disease physician Dr. Sajal Tanna is doing her best to keep up with the Delta surge. It's a sign that COVID-19 herd immunity is becoming more and more out of reach. ...

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

When the coronavirus pandemic started to sweep around the world in 2020, a number of governments and health authorities appeared to pin their hopes on "herd immunity." Stream Los Angeles News for free ...

As scientists learn more about the virus, they say herd immunity won't work. Early in the pandemic, scientists and public health experts leaned on their experience with other viruses to make ...

The immune system’s first encounter with a virus or vaccine establishes a “starting template” that shapes its response to new ...

SAN FRANCISCO -- It's a story that has been making headlines across the United States: Did Californians develop herd immunity after possibly being exposed to novel coronavirus last year? On Thursday, ...

CHICAGO (WLS) -- There are huge challenges in the quest for herd immunity with millions of adults in Illinois remaining unvaccinated. The I-Team examined why demand for the vaccines is dropping and ...

An infectious disease specialist took the time to explain what herd immunity is, how it works and when it might affect the spread of COVID-19. Dr. Frank Esper works for the Cleveland Clinic Children's ...

In the early days of the coronavirus vaccine rollout, scientists were hopeful it might herald the long-awaited turning point of the pandemic, not only bringing the threat of severe disease, ...

The idea of gaining “herd immunity” against COVID-19, meaning enough people will eventually be immune to SARS-CoV-2 to stop it from spreading, is starting to look unlikely, according to Nature. “We’re ...