VARIANTS

The KSAT Trust Index team answers the viewer question: "If I got COVID from the Delta and Omicron variants, should I still get vaccinated?"

Experts are seeing some differences in symptoms with the various COVID-19 variants. The differences may be small, but local doctors say it's important to know about them.

A researcher at Texas Biomed has helped develop the Pfizer and Novavax vaccines and is now working around the clock to help develop boosters, new vaccines and therapies that address new, more threatening variants.

A shortage of tests have plagued the US while the latest variant has spawned an explosion in cases.

The new variant threatens to overshadow the holiday season as campaigners fight vaccine fears.

University of Maryland study found people with a variant breathed out much more of the virus than patients with the original form of COVID-19.

A researcher with Texas Biomed Research Institute says scientists around the world are studying and monitoring the mutation of COVID-19 to see what new clusters of variants stick around.

Five things you need to know about the coronavirus pandemic this Sunday morning.

The UK and other rich nations are urged to show "historic leadership" in sharing vaccines globally.

Doctor responds to Biden's prime-time address, warning about COVID-19 variants In his first prime-time address since taking office, President Biden announced he is directing states to make COVID vaccines available to everyone 18 and older by May 1. He also said the U.S. could see a return to some sort of normalcy by the Fourth of July. Dr. Bob Lahita spoke with CBSN's Anne-Marie Green and Vladimir Duthiers about the president's address and concerns about the variants that continue to spread.

New variants discovered in U.S. raise fears over COVID mutations As new coronavirus cases are on the downward trend, leading public health experts are warning about new variants in the U.S. Carter Evans reports.

U.K. scientists studying genetic code of coronavirus as new variants emerge British scientists say they're concerned after learning the COVID-19 variant first detected in the U.K. has mutated again, which could make vaccines less effective. CBS News visited a lab genetically mapping COVID-19 to understand these new variants. Roxana Saberi reports.

U.K. scientists studying DNA of COVID-19 as new variants emerge British scientists say they're concerned after learning the COVID-19 variant first detected in the U.K. has mutated again, which could make vaccines less effective. CBS News visited a lab genetically mapping COVID-19 to understand these new variants. Roxana Saberi reports.