COVID-19, the illness caused by the SARS-CoV-2 virus, will likely become seasonal in countries with temperate climates, but only when herd immunity is attained, suggests a new review published in Frontiers in Public Health. CoronavirusCOVID-19COVID-19 immunityCOVID19diseaseimmune systemIMMUNITYScientistsseasonalvideoVITAMINvlogYouTube