A man who had the Moderna Covid vaccine says he developed blood clots that he feared would kill him.
Jeff Johnson’s claims have dragged the Massachusetts-based company into an ongoing health crisis that has already gripped rival vaccine makers Johnson & Johnson and AstraZeneca.
Scientists have yet to create a solid link between the new Covid vaccines and the blood clots.
Brighton-based Johnson ended up in the emergency room after experiencing pain and swelling in his left leg, KDVR reported.
He has been diagnosed with deep vein thrombosis (DVT), which is a clot that forms in a vein deep in the body such as the thigh or lower leg.
Jeff Johnson, 49 (pictured) from Brighton, Colorado, had blood clots in his leg a week after receiving the Moderna coronavirus vaccine at Salud Family Health Centers
According to Johnson, his doctor said it was possible that the blood clot known as deep vein thrombosis could have been caused by the Moderna vaccine. Pictured: A vial containing the Moderna COVID-19 vaccine in New York City, April 2021
Although these clots are different from those seen in patients who received the Johnson & Johnson vaccine, the 49-year-old said he was afraid he would die.
Johnson told KDVR he received the Moderna vaccine at the Salud Family Health Centers in Brighton, where he lives.
There were no problems until about a week later he started feeling swelling, pain, and tenderness in his left leg.
“I was concerned, of course. I know blood clots are bad and I was scared of dying, ”he told the ward.
When Johnson went to the emergency room, doctors found two blood clots in his left leg and was told he had DVT.
DVT occurs when a blood clot forms in one or more of the body’s deep veins, typically in the legs.
J & J’s vaccine was suspended in the U.S. after nine people – two in clinical trials and seven after the shot was approved – developed rare but serious blood clots in the brain from more than 7 million vaccinations
About half of all people have no symptoms, but those who do have pain, swelling, red or discolored skin, or a feeling of warmth in the affected leg.
The cumulative chance of developing DVT in a lifetime is between two and five percent, and the chance of death is less than 0.01 percent.
Johnson told KDVR that his doctor said the clots could have been caused by the Moderna vaccine, but there’s no evidence.
The 49-year-old said he became more concerned after learning of clotting problems from the J&J vaccine.
However, the blood clots associated with the J&J shot are different and are known as cerebral venous sinus thrombosis (CVST).
CVST is a rare type of blood clot that blocks the sinus ducts of the brain and drains blood, which can cause bleeding.
So far, nine patients – two in clinical trials and seven after vaccine approval – developed the clot, one of which died and two were in critical condition.
It prompted the Centers for Disease Control and Prevention (CDC) and the U.S. Food and Drug Administration (FDA) to recommend on Tuesday that the rollout of the J&J vaccine be halted until further data can be collected.
Dr. Pradeep Dhar, The vice president of medical services in Salud, where Johnson got his shot, told KDVR that CVST has not been linked to the Moderna vaccine.
He added that he had only seen three reports of people developing clots like the one Johnson experienced from at least 18 million post-vaccination visits, and recommends that everyone be vaccinated.
“The risk of COVID infection and complications is far higher than the risk of getting a clot from vaccination,” Dhar said.
The Wall Street Journal announced today that AstraZeneca and Johnson & Johnson invited Moderna and Pfizer, which also make a Covid vaccine, to a joint study to investigate a possible link between vaccines and blood clots.
Moderna and Pfizer refused. The study later found that people who got Covid were eight to ten times more likely to have blood clots than people who completed their vaccine.