According to research from the Centers for Disease Control and Prevention (CDC), even people who have had COVID-19 should be vaccinated (CDC). According to a research published in the CDC’s Morbidity and Mortality Weekly Report, natural immunity leads to 2.3 times the number of reinfections as opposed to breakthrough infections in vaccinated people. Investigators from the Centers for Disease Control and Prevention looked at data from Kentucky persons who were infected with COVID-19 in 2020.
Residents who were reinfected in May and June 2021 were compared to residents who had not been reinfected. Because of vaccine supply and eligibility requirements, May and June were chosen; this time was more likely to reflect resident decision to be vaccinated than than vaccination eligibility. Participants in the control group were Kentucky residents who had been infected with SARS-CoV-2 in 2020 but had not been reinfected by June 30, 2021.
The potential harm caused by COVID-19 variants like the Delta and Lambda variants seemed to weigh heavily on the minds of the CDC investigators. According to the MMWR study, the new variations may erode the protection afforded by having previously been infected with SARS-CoV-2. The findings of this study, according to the CDC, imply that complete immunisation is related with a lower risk of reinfection among previously infected people, whereas being unvaccinated is associated with a higher risk of reinfection.
Given the small number of partially vaccinated individuals included in the research, the lack of a meaningful connection with partial versus full immunisation should be regarded with caution. Meanwhile, new research from Public Health England (PHE) in its latest Variant Technical Briefing highlights how the variants pose such a threat to health-care systems. It reveals that the Delta variant remains highly dominant in the United Kingdom, accounting for nearly all occurrences.