Israel Discovers Possible Link Between Pfizer vaccine and Myocarditis

Israel’s Health Ministry announced that it discovered a possible link between some heart inflammation cases (myocarditis) observed mainly in young men and Pfizer’s COVID-19 vaccine.

According to the Health Ministry study, there were 275 cases of myocarditis identified between December 2020, when the vaccination drive began, and May 2021, including 148 cases the following month. 

There were 27 myocarditis cases after the first dose and 121 following the second dose where half of the patients had previous medical conditions.

Most of the myocarditis cases were also observed more among men aged 16 to 19 than in other age groups. 

The Health ministry researchers however clarified that the patients spent no more than four days in the hospital and that 95% of the cases were classified as mild.

The study concluded that “there is a probable link between receiving the second dose (of Pfizer) vaccine and the appearance of myocarditis among men aged 16 to 30,” but there is no definite proof yet. 

“A careful assessment of the reports is ongoing and it has not been concluded. Adverse events, including myocarditis and pericarditis, are being regularly and thoroughly reviewed by the companies as well as by regulatory authorities,” said Pfizer on the study. 


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