How long does it take for vaccines against COVID-19?

That is now a fundamental question at a time when the government of USA prepares to ship tens of millions of doses abroad to help curb the pandemic of coronavirus.

SIGHT: The US confirms that Peru will receive part of the 80 million vaccines against COVID-19 that it will donate

Some state officials have said in recent days that some doses that have not been used could expire at the end of the month., and White House Press Secretary Jen Psaki said Thursday that the proximity of expiration dates was a factor to consider as the government works to get the doses shipped as soon as possible.

Many medications and vaccines can last for years if stored properly, but they can begin to lose their effectiveness in much the same way as food breaks down in a pantry. Vaccine suppliers must keep an eye on the expiration dates of each batch, to ensure that they are used on time.

  • Mexico detects the first case of the lethal “black fungus” in a patient recovering from the coronavirus
  • A confirmed case of the lethal “black fungus” in a coronavirus patient sets off alarms in Chile
  • Vaccine Tourism: Directions, Websites, and Tips in a Guide to Getting Doses in the US

Vaccine expiration dates are determined based on data the manufacturer submits to regulators, showing how long vaccines are kept adequately effective, said Norman Baylor, former director of vaccines for the Food and Drug Administration. Medicines.

It’s called a “potency rating” and it can vary depending on the vaccine. Some, like lAs from tetanus, they generally last about two years if stored properly.

Like many perishable products, vaccines against COVID-19 they remain stable for longer at lower temperatures.

Vaccines licensed in the United States, developed by Pfizer, Moderna y Johnson & Johnson, They can last up to about six months from manufacture, depending on how they are stored.

But vaccines against COVID-19 They are new, and those expiration dates could eventually be extended as companies continue to test batch samples in the months since the vaccines began shipping, Baylor elaborates.




  • The shocking moment when Israel bombs the headquarters tower of the AP and Al Jazeera agency in Gaza | PHOTOS AND VIDEO
  • Horror in Gaza: Israeli bombing kills 8 children and 2 women from the same family
  • The impressive photo showing the fight between Israel’s “Iron Dome” and Hamas missiles
  • From the turnstiles to the polls: How Chilean students pushed the Constituent Assembly
  • 6 maps showing how the Palestinian territory has changed in recent decades
  • Who are the Israeli Arabs and what is their role in the current escalation of violence?


Disclaimer: If you need to update/edit/remove this news or article then please contact our support team Learn more