Individuals who were previously infected with COVID-19 are at least as well-protected against severe disease in the long run and may even have better protection, according to a recent study published in The Lancet. The study reviewed 65 different findings on natural immunity, with the results suggesting that natural immunity is at least 88% effective against hospitalization and death from all COVID-19 variants, for around 10 months after infection. However, the study did not account for the XBB.1.5 subvariant, also known as Omicron. Natural immunity provided less protection against the BA.1 subvariant of Omicron, which recorded a 36% efficacy against...