Single Shot Of Coronavirus Vaccine After Illness Could Extend Supply : Shots - Health News

Public health officials say it's important to vaccinate as many people as quickly as possible to reduce the risk posed by new coronavirus variants. One strategy to stretch existing supplies – albeit with huge logistical challenges — would be to give just one dose of the vaccine to people who have recovered from COVID-19. About half a dozen small studies, all consistent with one another but as yet unpublished, suggest this strategy could work. Dr. Mohammad Sajadi, at the University of Maryland medical school's Institute of Human Virology studied health care workers who were just getting their first of two vaccine shots. His research team homed in on those who had previously been diagnosed with COVID-19. 'We saw a much faster response and a much higher response,' he says, based on the protective antibodies his team measured in the blood. The infection served the same priming role as an initial dose of the Moderna or Pfizer vaccine would have, so the first shot they got was in effect a booster. It amplified and solidified immunity to COVID-19. The study was published Monday in JAMA, the journal of the American Medical Association.