Researchers working to develop a vaccine against COVID-19 must consider a few things.<br />The inevitable mutation of the virus is one of the most important considerations, says UPI.<br />They must also monitor its evolution to ensure that inoculations continue to prevent infection.<br />New vaccines could become available as early as later this year.<br />Researchers should use virus samples collected during testing to check for new strains.<br />New strains could mean that the virus may not respond to the vaccine formulation.
