The Delta variant of Covid-19 continues to dominate in Riverside County but new variants are emerging, including the Lambda variant, which is now in California. Experts say Lambda could be more infectious and resistant to vaccines than the initial coronavirus strain, but it isn't yet called a "variant of concern" in the U.S. or by the World Health Organization. Dr. Peter Chin-Hong, an infectious disease specialist at University of California San Francisco, said the Lambda mutation is predominant in South America right now, making up 80 to 90 percent of new cases in Peru – but it's spreading in the...
