Is it still possible to be protected if you have been fully vaccinated but lack antibodies?
COVID-19 vaccine not only helps to reduce infection chances, but it also helps to reduce the severity and fatality rates associated with the virus. Not only has the introduction of additional mutations complicated vaccine development.
Vaccines are less effective, and there are concerns that they may also reduce antibody defence. Which is better: Covishield, Covaxin, Sputnik V, or Moderna?
A recent study done by the Indian Council of Medical Research (ICMR), for example, has currently shown that Covishield, one of the premier COVID-19 vaccines being used in the country is not only less effective against the Delta variant of the virus, but mounts a lower than expected antibody response. As many as 16% of fully vaccinated people, who got Covishield, had zero antibodies against COVID-19.
Vaccine-driven antibodies are a key marker in potentially evading the risk of infection, and showcasing how effective a vaccine could be. But, if a vaccine mounts no antibodies, despite proper administration, what risks does it exactly entail. More so, will you be still protected if you are fully vaccinated but have no antibodies?