Johnson & Johnson shipped out nearly 4 million doses of its newly authorized, one-shot COVID-19 vaccine Sunday night to be delivered to states for use starting on Tuesday. The company will deliver about 16 million more doses by the end of March and a total of 100 million by the end of June.
That adds to the supply being distributed by Pfizer and Moderna and should help the nation amass enough doses by midsummer to vaccinate all adults. The White House is encouraging Americans to take the first dose available to them, regardless of manufacturer.
In New York City, where limited indoor dining has resumed, officials said the J&J vaccine will help the city to inoculate millions more people by summer, including through door-to-door vaccinations of homebound senior citizens.
But the efforts come with strong warnings from health officials against reopening too quickly, as worrisome coronavirus variants spread.
On Monday, the head of the CDC, Dr. Rochelle Walensky, urgently warned state officials and ordinary Americans not to let down their guard, saying she is “really worried about reports that more states are rolling back the exact public health measures that we have recommended.”
“I remain deeply concerned about a potential shift in the trajectory of the pandemic,” she said. “We stand to completely lose the hard-earned ground that we have gained.”
Cases and hospitalizations have plunged since the end of January, and deaths have also dropped sharply, but they are still running at dangerously high levels and have even risen slightly over the past several days.
“We cannot be resigned to 70,000 cases a day and 2,000 daily deaths,” Walensky said.
Overall, the outbreak has killed more than a half-million Americans.
The vaccine already is contributing to a decrease in severe cases and deaths among older people, and is “quickly becoming a bigger contributor” nationally, Justin Lessler, an expert in infectious diseases at Johns Hopkins University, said in an email.
“I suspect we will see it overtake natural infection as the biggest driver of immunity late spring earliest, more likely midsummer,” Lessler said.
Dr. Amesh Adalja, an infectious disease specialist at Johns Hopkins University, said he believes states and cities have leeway to ease some restrictions because hospitals no longer are at capacity in most communities. But “I do think that masks are likely going to need to be kept in place for some time until we get more of our vulnerable populations vaccinated,” he said.
“It is important for restaurants who are increasing their capacity to remember that we are still in a pandemic and to continue to follow some of those rules,” Adalja said.