![]() The subvariants known as BA.4 and BA.5 appear to evade protection from vaccines and previous infections more easily than any others before.Īs of July 2, BA.5 was responsible for nearly 54% of COVID cases in the US BA.4 accounted for nearly 17% more, according to the latest data from the Centers for Disease Control and Prevention.īA.4 and BA.5 COVID Symptoms: What to Watch For as Infections Climb ![]() What Should You Do When You Have COVID? Here’s What Health Officials SayĪs two more contagious omicron subvariants take hold across the US, you may be wondering what steps to take if you test positive for COVID-19. ![]() So what is it about the new variant that makes it particularly concerning and what should you be watching for? The rise in case rates, even as metrics remain uncertain due to at-home COVID test availability, has sparked warnings and renewed calls for masking in some locations. Latest on Super Contagious Omicron Subvariant BA.5Ī highly-transmissible mutation of the omicron COVID variant known as BA.5 is raising concerns globally as it continues to gain traction in several countries, sparking new waves of cases and, in some instances, hospitalizations. The Centers for Disease Control and Prevention has long touted the success of COVID-19 booster shots in decreasing the risk of severe illness, encouraging those eligible to get boosted as soon as possible.Īs two new omicron subvariants, said to be the fastest spreading strains yet, circulate around the globe, health officials widely argue receiving a booster shot is a crucial part of reducing infection risk and curbing the pandemic.įor those who have yet to get boosted, people considering a second dose and parents planning to get their children boosted, there may be some lingering questions. How Long Does it Take for COVID Booster Shot to Start Working? Here’s What Research Says The omicron variant has led to a major shift in “natural immunity,” with many who had previously been infected susceptible to reinfection with the variant, as well as its faster spreading subvariants, BA.4 and BA.5. Unlike the beginning of the pandemic, COVID-19 reinfections are no longer uncommon, with more new variants emerging and leading to questions about immunity. ![]() How Long Does COVID Immunity Last? Here’s What Doctors Say Amid New BA.5 Subvariant Concerns But it does look like, especially in India, the rates of transmission are showing kind of that exponential increase.” Whether it will outcompete BA.5, he said, is yet to be determined. Its still really early on for us to draw too many conclusions, said Matthew Binnicker, director of clinical virology at the Mayo Clinic in Rochester, Minnesota. Its unclear whether it could cause more serious disease than other omicron variants, including the globally prominent BA.5. Scientists say the variant called BA.2.75 may be able to spread rapidly and get around immunity from vaccines and previous infection.
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