“We can’t afford people dying on vaccine preventable diseases because we were too focused on Covid. We need excellent communication which is 100 per cent transparent," said Dr Soumya Swaminathan, WHO scientist
The Brazilian Association of Vaccine Clinics (ABCVAC) confirmed on its website it had signed a memorandum of understanding with the Indian firm to purchase its Covaxin vaccine
According to the scientists, there could be multiple waves of COVID-19 before herd immunity is achieved.
The recovery rate in Mumbai is 73 per cent while the doubling rate has climbed to 69 days.
For diseases where a vaccine is available, herd immunity is often calculated with the assumption that everybody has the same level of immunity – known as a homogenous model.
"This cannot be achieved without accepting the collateral damage of many deaths in the susceptible population and overburdening of health systems,"
This research takes a new mathematical approach to estimate the herd immunity figure for a population by an infectious disease, such as the current COVID-19 pandemic.
CM Jagan Mohan, says a vaccine for the virus might be developed only after a year or so and till then developing "herd immunity" was the only option to check the disease spread
Pragmatism rather than paranoia is neccessary to tackle the pandemic, say experts