No evidence mRNA COVID-19 vaccines reduce lifespan


AN Irish Professor and anti-vaccination advocate, claimed in a video circulated on WhatsApp, in Nigeria, that the mRNA COVID-19 vaccine can reduce the lifespan of a user and cause severe health challenges like infertility.


The mRNA COVID-19 vaccines reduce lifespan.


The FactCheckHub findings show that the claim is FALSE. There is no evidence to substantiate it.

In the 57 seconds video retrieved on April 19, 2021, the Professor, Dolores Cahill stated that “Anyone who’s over 70 who gets one of these mRNA vaccines will probably be — sadly die within about two to three years.”

She added that, aside reduced lifespan, there are severe health issues. She said:

“And I would say anyone who gets the mRNA injection, no matter what age you are, your life expectancy will be reduced, you know, die if you’re in your thirties within five to ten years, and you probably will have allergy, neuro-cognitive issues, inflammation, and of course infertility is the major one.”

The video clip of Cahill which is from a longer version has been repeatedly posted on platforms such as Facebook, Twitter and Blogs and is branded as coming from a group called the “World Freedom Alliance,” which Cahill helped found in 2020.

Cahil is a Professor at the School of Medicine in University College Dublin.  She has previously come under criticism for her comments on COVID-19, which were often found to be baseless or misleading.

The claim in the circulated clip is no different, as available information and the global health authority, the World Health Organization (WHO) dismissed it.

More so, the claim that the vaccine causes infertility have been debunked here and here.

The mRNA COVID-19 Vaccine

There are several categories of  vaccines for COVID-19, the mRNA (Nucleic acid vaccine) is one of them.

It works by teaching the cells how to make a protein—or even just a piece of a protein—that triggers an immune response inside the body.

This immune response, which produces antibodies, is what protects the body from getting infected if the real virus enters.

Pfizer-BioNTech, Moderna and Johnson & Johnson’s Janssen are brands of the mRNA vaccine.

The general side effects of the mRNA vaccines as stated by the U.S. Center for Disease Control and Prevention (CDC), on the arm are pain, redness and swelling. while for the rest of the body are tiredness, headache, muscle pain, chills, fever, nausea. Reduction in lifespan is not part of it.

There were cases of blood clots which led to the suspension of one of the mRNA brand, but even that has been lifted and certified safe with a caveat.

A small number of people also had serious allergic reactions to the vaccines, this led to the CDC’s advise that individuals who have previously experienced anaphylaxis or had any kind of immediate allergic reaction to any vaccine should be monitored for  half an hour after getting the shot.

The CDC also recommends against vaccination for those who have had a serious allergic reaction to any of the authorised COVID-19 vaccines or any of their ingredients.

COVID-19 mRNA vaccine infographic.

Similarly, the WHO, stated that the side effects of all the COVID-19 vaccines have been mild and moderate so far.

In addition, a professor who is a WHO Infection, Prevention and Control Expert, Adebola Olayinka told The FactCheckHub that mRNA vaccine, like every other certified vaccine does not change the genetic composition of the body neither does it reduce the lifespan of its user.

“It is not true that mRNA vaccine or any other vaccine certified by WHO can reduce lifespan or cause any other severe health issues. These vaccines have been tested and certified suitable for human consumption,” the professor stated.

The FactCheckHub had earlier debunked a claim that the COVID-19 vaccination will turn humans to vampires.


The claim that mRNA COVID-19 vaccine reduces lifespan is FALSE; there is no evidence to substantiate it.


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