What are the differences in transmissibility between novel and emerging SARS-CoV-2 variants?

Medical News – Currently, the majority of reporting of secondary attack rates (SAR) in coronavirus disease 2019 (COVID-19) have defined secondary infection as recent polymerase chain reaction (PCR) positivity in a contact who is displaying symptoms. By only including those who are symptomatic while having detectable viral ribonucleic acid (RNA) during sampling, this method undercounts the total number of infected individuals. Continue Reading Related PrePrint Paper