Conversely, almost every adult over 45 is carrying some form of HPV and a few of those forms cause cancer. If any of those adults has unprotected sex with someone without HPV who is unvaccinated, they almost certainly will transmit the virus. Even if condoms are used, HPV can still be transmitted. This is a much more contagious virus than HIV.
The HPV vaccine is both extremely safe and extremely effective. Suggesting that every human consider getting the vaccine -- with appropriate consultation with their healthcare provider -- is sound advice.
Common causes of hypertension are "contagious". Summary:
spousal concordance: one partner’s chronic disease raises the odds the other has it too. If one spouse has hypertension, multiple studies suggest the other spouse’s risk is about 1.3 to 1.5 times higher than their cohort.
Genetic causes can easily double risk over baseline cohort for children.
However there is a strong environmental/lifestyle effect in children. Studies in Scandinavia show that children adopted into hypertensive households carry an elevated risk compared to the general population. A hypertensive parent with an adopted child nudges the child’s later-life risk by about 20–30% higher than baseline.You're very confused about the statistics here.