Coxsackie is not a sex act. It is a highly infectious virus that causes myocarditis. It causes an inflammation and weakness of the heart muscle. Myocarditis can damage the heart muscle causing it to become thick and swollen. The heart muscle may be directly damaged by the virus or the bacteria that infect it causing death. This inflammation may be attributed to the COVID vaccine but that association is coincidental.
There are a number of coxsackievirus types that can cause infections in people, including:
Coxsackievirus A2-8, A10, A12, A14, A16 (a type of Human enterovirus A)
Coxsackievirus A9 (a type of Human enterovirus B)
Coxsackievirus B1-6 (a type of Human enterovirus B)
Coxsackievirus A1, A11, A13, A17, A19-22, A24 (a type of Human enterovirus C)
Since it was first identified in 2008, Coxsackievirus A16 is usually the virus most identified with causing more severe and atypical cases of Hand-foot-and mouth disease (HFMD) in the United States and worldwide, including in adults. Some studies suggest that type 1 diabetes may be linked to previous coxsackievirus type B infections. Children, as well as adults living with compromised immune systems, are typically more at risk of severe complications including sepsis (systemic infection), and myocarditis (heart muscle inflammation). They can cause heart and breathing problems like apnea and arrhythmias.
The coxsackievirus is spread by both fecal-oral (direct or indirect contact with stool i.e. homosexual activity) and respiratory transmission (someone coughs or sneezes on you). The Centers for Disease Control and Prevention warn that you might get infected by kissing someone who has the disease or by touching a doorknob that has viruses on it, then touching your eyes, mouth, or nose. The Centers for Disease Control and Prevention (CDC) estimates 10-15 million symptomatic cases of Hand Foot and Mouth Disease (HFMD) each year in the United States.
A sample size of 3 is insufficient for any meaningful scientific study.
the CDC article was so limited and early in the epidemic meaning it was for the first shot or two. Most of the problems seem to be after repeated boosters and this was not addressed.
https://www.cdc.gov/mmwr/volumes/73/wr/mm7314a5.htm?s_cid=mm7314a5_x
Take a look at when this paper was received: FEB 2021.
Myocarditis After SARS-CoV-2 Vaccination: A Vaccine-Induced Reaction?
...Finally, in light of the vast number of subjects receiving different doses of SARS-CoV-2 vaccine in the next few months, clinicians should remain vigilant and suspect myocarditis in patients who present with cardiopulmonary symptoms after a recent vaccination.