Pfizer, NYU working on innovative coronavirus vaccine that could be ready by end of summer – NBC News

Researchers at Pfizer Inc. and New York University are working on a never-before-tried coronavirus vaccine that the pharmaceutical company says could be available by September.

The vaccine, which carries genetic code known as messenger RNA, attempts to reprogram the deadly pathogen rather than manipulate the live virus.

"It is probably the fastest way of having a vaccine available to stem this pandemic, based on the data that I have seen," said Kathrin Jansen, who leads vaccine research for Pfizer.

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The vaccine instructs a person's cells to make proteins associated with the coronavirus without making the person sick. Researchers hope the body's immune system will then kick in, creating the antibodies needed to fight off COVID-19.

"Messenger RNA is something the body produces on its own normally," said Mark Mulligan, chief of infectious diseases at NYU Langone Health. "It's kind of a new thing, but it's really not anything that's too different from what the body does for itself."

But Dr. Peter Hotez, co-director of the Texas Children's Center for Vaccine Development at Baylor University, said no RNA vaccine has been licensed because they have worked well only in laboratory animals.

"Those immune responses have not translated into ... good human immune responses," he said.

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Mulligan said he is optimistic about a trial underway at NYU, but he added that "the data will speak for itself."

"This is the science," he said. "You don't have to have faith or belief. The answer will come from the investigations that we do."

The vaccine is one of dozens under review in the global fight against the pandemic.

Tom Costello is an NBC News correspondent based in Washington, D.C.

Tim Stelloh is a reporter for NBC News, based in California.

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Pfizer, NYU working on innovative coronavirus vaccine that could be ready by end of summer - NBC News