“Exact same thing with covid-19 vaccine.”
No, it is not. Did you freak out about the flu?? No?
Getting the vaccine does NOT ensure you cannot carry and transmit the virus. Read the freaking labels before spouting off such stupid nonsense.
Covid-19 is 10 times more contagious than seasonal flu.
And covid-19 has caused serious permanent damage to lungs, or heart or liver or kidneys or brain of SOME young & healthy persons. Flue does not do that.
Covid-19 kill ratio for healthy people is much lower than small pox (which I had and almost died), SARS, Yellow fever, drug resistant TB, Ebola, Plague, etc. However covid-19 infections have spread 10 times faster than those other more lethal diseases.
You are forgetting the real reason to get vaccinated. Which is improving your chances of not getting seriously sick with covid-19. That reduces burden on the healthcare infrastructure.
Another good reason for vaccines is that asymptomatic infection without seriously sick spreads far LESS virus cells to nearby humans. Notice how seriously ill covid-19 patients are handles in hospitals. They are completely covered up in plastic tents. They do not do that to Flu patients.
Partial knowledge is far more dangerous than no knowledge.
That's true. But the real issue is disembarking covid positive passengers. My guess most ports will require vaccinated passengers, certainly the US will for embarkation and disembarkation, so it won't be up to the cruise lines. The other problem is port activities, which might be restricted to covid secure tours and port facilities. No taking a cab or walking around town. Presuming that's the case it will be a real killer for me.