A new study published by the University of Oxford suggests that being vaccinated against COVID-19 reduces the spread of both the alpha and delta variants of the virus, NBC News reports.
Notably, the study was published online on Thursday, October 1, and has not yet been peer-reviewed.
The team from Oxford examined the contact tracing data of nearly 150,000 contacts that were traced from roughly 100,000 initial cases, including those unvaccinated, partially vaccinated (taken a single dose), and fully vaccinated (taken two vaccine doses). The test included those who took the Pfizer and AstraZeneca vaccines. The researchers analyzed how the vaccines affected the spread of the virus if a person had a breakthrough infection with either the alpha variant or the highly contagious delta variant.
Both vaccines were found to reduce transmission of the virus; however, both vaccines performed better against the alpha than the delta variant.
“When infected with the delta variant, a given contact was 65 percent less likely to test positive if the person from whom the exposure occurred was fully vaccinated with two doses of the Pfizer vaccine. With AstraZeneca, a given contact was 36 percent less likely to test positive if the person from whom the exposure occurred was fully vaccinated,” NBC claimed the study found.
Those who were only partially vaccinated had a greater risk of getting infected than those who were fully vaccinated. (https://www.breakingbelizenews.com/2021/10/03/new-study-supports-that-vaccination-reduces-the-spread-of-covid-19/)