New York governor Andrew Cuomo told MSNBC that the Trump administration had "failed at every turn" in its coronavirus response.
President-elect Joe Biden is pressing Congress to fast-track another coronavirus stimulus package after a months-long standoff between House Democrats and Senate Republicans.
New York state Senator Brad Hoylman, a self-described "pro-vaccine legislator," encouraged people to get vaccinated against COVID-19 so others are protected.
The president tweeted to praise "great discoveries, which will end the China Plague" as vaccine breakthrough fuels optimism over ending pandemic.
Researchers are hoping to recruit a total of 30,000 people globally for the vaccine which is modeled on the Ebola jab.
The president had previously hinted Friday that he would attend the event in Washington, D.C.
"This crisis demands a robust and immediate federal response which has been woefully lacking," President-elect Joe Biden tweeted on Friday.
In his first public address since Election Night, Trump indicated that a possible April rollout of a vaccine could exclude New York.
The health expert leading the federal government's coronavirus medical research efforts expects that millions of doses of a COVID-19 vaccine will be ready to distribute to the most at-risk populations next month.
Uğur Şahin believes the experimental vaccine, said to be 90 percent effective, will end the COVID-19 pandemic.
A shipment of lab monkeys meant for COVID-19 vaccine research in Florida was reportedly cancelled due to pressure from animal rights activists, while scientists warn that the primates are in short supply but are needed for vaccine development as the virus continues to quickly spread.
More than 782,000 people in the U.K. have lost their jobs during the pandemic and economists warn "we're not out of the woods yet".
With millions still out of work, and companies in badly-hit sectors floundering, the mood in the market is mixed.
Officials said the three were likely infected with the virus just before they were vaccinated.
Minnesota, Iowa, New Jersey and Nebraska have begun reimposing new coronavirus-related restrictions as hospitalizations soar.
There are currently 47 vaccine candidates under clinical evaluation worldwide, while 155 candidates are at the pre-clinical evaluation level.
The president's daughter defended Operation Warp Speed, saying that Pfizer's vaccine was a participant in the administration's program.
"This is when science brought it to us," Pfizer's Albert Bourla said.
Memes featuring various celebrities, including Kanye West and actors from the "Lord of the Rings" film trilogy, have surfaced across social media following the latest news.
The video-calling software became central to many people's lives during coronavisus lockdowns around the world, but what happens to the company when a vaccine is found?
The vaccine has been deemed to be more than 90 percent effective, according to early data from Pfizer trials.
"The full data set on which the claim is based has not yet been released and so we don't know exactly what has been found," one immunologist said.
As of Tuesday, all vaccine candidates across the globe are still at their pre-clinical and clinical evaluation stages, according to the World Health Organization (WHO).
Trump's numerous vows to have a COVID-19 vaccine before Election Day have been criticized by physicians who said the unfulfilled campaign promises must stop.
Immediately replacing lockdowns with focused protection will reduce the long-run harm to the old and young alike.
"Could be January, could be later, we don't know," Dr. Anthony Fauci said Wednesday when speaking about the timeline for the earliest release of a U.S. COVID-19 vaccine.
Anthony Fauci, the top infectious disease specialist in the U.S., questioned Russia's claims that its first vaccine was safe and effective given the lack of extensive testing in clinical trials.
People confuse the availability of the flu shot for a virus vaccine.
Dr. Anthony Fauci discussed at length how the country is responding to the ongoing pandemic, including how the U.S. might eventually put the coronavirus to rest.