Booster dose causes myocarditis

The medical journal The Lancet has criticized the massive
booster vaccination against coronavirus. The publication was
prepared by an international team of experts, including scientists
from the World Health Organization (WHO). Scientists say that
the vaccines used are quite effective. They believe that there is no
point in re-vaccination at the moment. Moreover, doctors say that
a second vaccine too hastily introduced can lead to diseases such
as myocarditis and Guillain-Barre syndrome.
WHO claims that all of the above applies at least to mRNA
vaccines (Pfizer and Moderna and others), as well as drugs based
on adenovirus, including the Russian Sputnik V. It is argued that
prior to the administration of booster doses of vaccine to humans,
it is necessary to conduct studies that will assess their effect on
humans. In addition, WHO experts say the drugs should be available
in all countries. It is emphasized that some states are still unable to
provide primary vaccination. Myocarditis is an inflammation of the
heart muscle (myocardium) that develops in the absence of ischemia
(a violation of the blood supply). If the inflammation spreads to the
serous membrane of the heart - the pericardium, they speak of
pericarditis. Some people have minimal symptoms, while others
develop heart failure and life-threatening arrhythmias. With clinical
manifestations, serious treatment is required, since there is a risk of
developing dilated cardiomyopathy and other complications.