Myocarditis

The National Public Health Organization (EODY) alerted medical associations throughout Greece about a spike in parvovirus cases among children at a kindergarten in Thessaloniki, after a 3.5-year-old child passed away after developing acute myocarditis due to parvovirus B19. 

A 17-year-old boy, Mete Karan, who was admitted to hospital with a sudden chest pain, has become the seventh person to be diagnosed with a condition observed after viral diseases such as COVID-19.

The Pfizer vaccine triples the likelihood of developing various forms of inflammation of the heart tissue, but these side effects are extremely rare. This was established by an international team of scientists, and their findings were published in an article in the Annals of Internal Medicine.

COVID-19 can exacerbate old diseases and unlock new ones, and the Delta variant attacks the cardiovascular system,reported  the press office of the Ministry of Health (Ministry of Health) on Facebook.

Myocarditis, stroke or blood clots formation may also develop.

Japan's Kanagawa prefecture said it has found another vial of Moderna Inc's COVID-19 vaccine suspected of containing a foreign substance and has put the rest of the lot on hold.

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In a statement on Aug. 31, prefectural authorities said a pharmacist found several black particles in one vial upon checking for foreign substances before the vaccine's use.

The World Health Organization said on July 9 that there was a "likely causal association" between coronavirus vaccines using mRNA technology and "very rare" heart inflammations, but the benefits still outweigh the risks.

The ministry’s findings found 275 cases of myocarditis between December 2020 and May 2021

"It is not unusual to happen that within one systemic, violent inflammatory reaction, the virus reaches, among other things, the cardiovascular system. The disease initially attacks the lungs, but the cardiovascular system suffers both due to poor gas exchange in the lungs and heart muscle inflammation.

Two poison control doctors who listed an 11-month-old boy’s cause of death as damage to his heart muscle claim that it was brought on by ingesting marijuana.