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What to know about 4 worrisome coronavirus variants, including one that can partially evade vaccines awoodward@insider.com (Aylin Woodward,Andrew Dunn) © Irfan Khan/Los Angeles Times/Getty Images A long line for general medical check-ups and COVID-19 testing forms at St. John's Well Child and Family Center in Los Angeles, California. Irfan Khan/Los Angeles Times/Getty Images There are four mutated coronavirus strains worrying public-health experts and vaccine developers. Some of these variants are more infectious, and may be deadlier or able to partially evade vaccines. Her...

Researchers say a new coronavirus variant found in California may have contributed to Los Angeles' case surge Researchers say a new coronavirus variant found in California may have contributed to Los Angeles' case surge Aylin WoodwardJan 28, 2021, 00:17 IST Nurse Michelle Goldson in the ICU at Martin Luther King Jr. Community Hospital in Los Angeles, California on December 17, 2020.Francine Orr/Los Angeles Times via Getty Images More than 1 million people in LA county have gotten According to a recent study, LA's coronavirus surge coincides with the emergence of a new variant called CAL.20...