A study of nearly 2,000 vaccinated health-care workers, some of whom had contracted COVID-19, has found that those who survived the virus and then received an mRNA vaccine have a higher number of long-lasting antibodies.
Of those 1,960 workers, 73 had previously tested positive for COVID-19 prior to being vaccinated.
All 1,960 participants gave a serum sample at least 14 days after receiving their second shot, and the samples were tested for antibody levels at one month, three months, four-and-a-half months and six months after receiving the second shot. “We found that health-care workers with prior SARS-CoV-2 infection followed by two doses of mRNA vaccine — therefore, three independent exposures to the S1 spike protein — developed higher antibody levels than those with vaccination alone,” Diana Zhong, M.D., an infectious diseases fellow at the Johns Hopkins University School of Medicine and lead author of the study, said in the release.
“This suggests that a longer interval between infection and first vaccine dose may enhance the antibody response,” Milstone said.
Canada Latest News, Canada Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Pfizer COVID-19 booster shot reduces severity of disease, study suggestsNew research into the effectiveness of the Pfizer COVID-19 booster shot suggests getting a third dose significantly reduces the risk of disease-related hospitalization and death.
Read more »
White House press secretary Psaki says she has COVID-19White House press secretary Jen Psaki said Sunday she has contracted COVID-19 and is experiencing mild symptoms.
Read more »
China says U.S. COVID-19 origins report is without credibilityDeclassified intelligence report said both natural origin and lab leak were plausible hypotheses, but truth may never be known
Read more »
White House press secretary Jen Psaki says she has COVID-19White House press secretary Jen Psaki said Sunday she has contracted COVID-19 and is experiencing mild symptoms.
Read more »
Bryan Adams ducked out of Rock & Roll Hall of Fame performance due to COVID-19Canadian musician Bryan Adams ducked out of a scheduled performance at the Rock & Roll Hall of Fame on Saturday night after testing positive for COVID-19.
Read more »