Like any standard shot, individuals could be allergic to them. Though direly needed, especially by health workers, it remains that people need to take the necessary precautions such as consulting their doctor first.

The Pfizer COVID-19 vaccine could still have some adverse effects on individuals, particularly those who have a history of allergic reactions. It appears that there are some over in the United States dealing with it with their identities withheld.

In New York City, a health worker reportedly suffered a “serious adverse event” after receiving the vaccine. However, the worker is now in stable condition after being treated for the allergic reaction.

"With more than 30,000 COVID-19 vaccinations administered in New York City, we have received a single report of a serious adverse event in a health care worker," the New York City Health Department said.

Some details on it were not shared. This included when the vaccine was administered and how soon the reaction cropped up. It is the first one to be reported in New York although there are some similar cases across the United States.

With this development, the Centers for Disease Control and Prevention (CDC) has issued new guidance to individuals – particularly the ones who have a history of allergic reactions to vaccines.

"If you have ever had a severe allergic reaction to any ingredient in a COVID-19 vaccine, CDC recommends that you should not get that specific vaccine," the health agency stated.

"If you have had a severe allergic reaction to other vaccines or injectable therapies, you should ask your doctor if you should get a COVID-19 vaccine. Your doctor will help you decide if it is safe for you to get vaccinated."

As of this writing, the reactions to the COVID-19 vaccine once administered are rare and low. However, the best approach right now is to practice due diligence and make the necessary consultations. Most are advised to take one but it would still be best to get the advice of a doctor before proceeding.

Pfizer La entrada principal de Pfizer en New York City, Agosto 31, 2003. Reuters/Jeff Christensen JC