PUNE: A study by the Indian Council of Medical Research (ICMR) has found that mixing the two lead Covid-19 vaccines — Covishield and Covaxin — produced a better immune response than a same-dose schedule.
The research paper — yet to be peer-reviewed — stated that despite a weakening in antibody response after six months, those in the heterologous group — given one dose of Covishield and second dose of Covaxin six weeks apart — showed a better immune response than those in the homologous group — people given either Covishield or Covaxin as both doses.
