But the "steady flow" of 50,000 or 60,000 new COVID-19 cases daily remains concerning. Moderna's shot was cleared for those age 18 and older, and no coronavirus vaccine has been authorised in younger kids yet.
The vaccine will provide immunity to our body for preventing the virus even after having direct contact with a patient.
'The prevailing question is, when these people get infected, how often is that, and if they are asymptomatic, how much virus in their nose and how often do they transmit the virus? "This will help inform science-based decisions about mask use and about social distancing post-vaccination".
The director of the Centers for Disease Control and Prevention and former infectious disease chief at Mass.
China is stepping up efforts in developing and producing mRNA COVID-19 vaccines. The final eligibility expansion comes as the federal government has promised an increased supply of vaccine by April, and as Minnesota has become a national leader in getting shots into arms quickly. "So just ask people to do their best to be patient, to explore the opportunities that they have".
The reason that the CDC remains so conservative in the freedoms it recommends as safe for fully vaccinated people is that last year's massive vaccine trials simply weren't created to answer key questions about asymptomatic infection and transmission.
A United Kingdom study has recently shown that a single dose of the Pfizer COVID-19 vaccine offers an immune response similar to that generated by infection and could also give protection from variants to people who have previously had the virus, a British study said on Friday.
But the unknowns left by those trials have left vaccinated Americans in a sort of limbo between continuing to live life as they have for the past year of the pandemic, and returning to their pre-pandemic ways.
The vaccine is created to help your body recognise the virus if it encounters it in the wild, but as the virus mutates it begins to look subtly different, making it harder for the body to recognise.
Pfizer is the latest company to test its vaccine on young children, after Moderna announced trials on the same age group earlier this month.