Study finds 29% of teenagers develop heart problems following second dose of Pfizer’s mRNA COVID-19 vaccine
08/12/2022 // Arsenio Toledo // Views

A new study from Thailand has found that 29 percent of children who received Pfizer's mRNA Wuhan coronavirus (COVID-19) vaccine suffered heart-related effects afterward.

The researchers studied 301 students across two schools in Thailand. The students were all between the ages of 13 and 18 and had already been partially vaccinated with Pfizer's COVID-19 vaccine. None of them experienced any serious adverse events following the first dose. Most also have no underlying health conditions, but 44 have asthma or allergic rhinitis. (Related: Cardiovascular incidents among teens, young adults in Scotland SURGED following distribution of COVID-19 vaccines.)

The researchers conducted laboratory tests to establish a baseline and followed this up with more tests three days, seven days and 14 days after the students received the second dose of the Pfizer vaccine.

According to the study, 29 percent or 88 of the students experienced cardiovascular conditions following vaccination. Fifty-four of them had abnormal electrocardiogram results. Six experienced mitral valve prolapses, six had high blood pressure and seven were diagnosed with heart inflammation.

Two of those youths were hospitalized, including one admitted to an intensive care unit. A lot of the students also experienced tachycardia, palpitations and myopericarditis following vaccination.

Due to the massive amount of heart conditions found following vaccination, the researchers said that people receiving any of the vaccines based on mRNA technology "should be monitored for side effects."


Cardiologists in agreement that risks to heart health too great to give COVID-19 vaccines to children

Cardiologists who reviewed the Thai study said that it just adds to the massive body of evidence proving that the risks of the COVID-19 vaccines far outweigh the supposed benefits, especially for young people.

"Any form of heart damage in young persons is concerning since the long-term risks of heart failure and sudden death with exercise are unknown," said cardiologist and COVID-19 vaccine expert Dr. Peter McCullough. "This is one of approximately 200 published papers demonstrating the risks of COVID-19 vaccination far outweigh any theoretical benefit."

Dr. Anish Koka, a Philadelphia-based cardiologist, said the new study results "are not reassuring." She added that while the study authors claim most of the patients recovered, many of the conditions the students experienced are far from mild.

"I can assure you, and the mostly ER doctor contingent on Twitter that brays about 'mild myocarditis,' that there are no cardiologists who want to see their children have a cardiac troponin that is 2x normal or 40x normal after administration of some therapeutic," wrote Koka in a blog post. "It is absolutely head-spinning to see that the public conversation now is geared to dismiss cardiac injury in young healthy children as 'mild.'"

At the very least, Koka agreed that the Thai study "helps fill in some of the data void so parents and their doctors can be better informed when discussing the risks and benefits of the [COVID-19] vaccines."

Learn more about how the mRNA COVID-19 vaccines affect people's hearts at

Watch this episode of the "Health Ranger Report" as Health Ranger Mike Adams talks about the many parents all over America realizing that the COVID-19 vaccines are killing their children.

This video is from the Health Ranger Report channel on

More related articles:

Canadian study confirms mRNA vaccines increase risk of myocarditis, especially in young men after second dose.

Hong Kong medical experts find evidence suggesting COVID-19 vaccines cause heart disease.

As many as 30% of US pilots may have COVID-19 vaccine-induced heart conditions.

Cardiovascular emergencies in Israel increased by 25% after COVID-19 vaccine rollout.

Australian media working overtime to blame surge in cardiovascular injuries on anything but COVID-19 vaccines.

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