According to the World Health Organization’s (WHO) chief scientist Soumya Swaminathan, it is a little bit of a dangerous trend as far as mix-and-match of vaccines is concerned as there is no data or evidence of its safety available as of now. She reminded that there was limited data available about the implications of administering two different shots of the vaccine for instance the increasing trend of inoculation with AstraZeneca followed by a second dose of Pfizer.
As of now the Delta variant is the most dangerous, contagious and dominant strain worldwide. It may be recalled that the WHO last month advised the world’s population to administer whatever vaccine was made available first, even if the said individual had recovered from the Covid-19 infection. It is learnt that the Covid-19 vaccines used around the world are all designed to stimulate the immune system to produce virus-fighting antibodies, though the way they do so varies. Scientists had earlier said that based on basic principles of how vaccines work, mix-and-match is going to work. Unless there is specific data and evidence available, all this will be mere speculation.
