“There are no sure things in science,” said another official, on the condition of anonymity. “We cannot promise a 100 percent chance of success. What we can tell Americans is that we’ve taken every possible step to maximize the probability of success,” he added.

Bernart accused Bolsonaro of having downhearted scores of people like her who vested him with power to a great deal by not taking accountability for the large-scale deaths in the country.

The Oxford University scientists in charge of developing a coronavirus vaccine believe their chances of success are now only 50%.

Bright will present his arguments before a US House of Representatives panel on May 14, as revealed by his spokeswoman on Twitter on Tuesday.

Officials at the Department of Health and Human Services has denied any such claims- especially those made by Bright and reiterated that the top doc was moved to a more significant role— managing a public-private partnership on vaccine development and treatment.

BNT162 is the result of a collaboration between the scientists of BioNTech, a local firm, and Pfizer a U.S. pharma company.

While mass-production will soon be a reality, the first priority will be given to health workers in case of a shortage of vaccines. The next will unsurprisingly be children and pregnant women—in a bid to keep sickness and mortality rates among these categories at the lowest.

Researchers from Oregon have found that HIV vaccines can eliminate the virus in monkeys and are eager to see the results when tested on humans.

Scientists in Brazil hope to test an AIDS vaccine on Rhesus monkeys later this year.