[Tangsen]

Question: Can you tell me why Britain, Israel and Spore are getting thousands of breakthrough cases everyday after majority of populations are fully vaccinated?

Your understanding is, vaccines are 100% effective against Covid, Delta and many other variants. 

Wrong lah, vaccines are only effective to some extent but are unable to protect us from Delta variant, that is why we are having so many breakthrough cases everyday. Must wait for the new vaccines that are effective against Delta and other variants in coming year.

Question: Why quarantine is required for people entering a country from overseas even after these people’s PCR test results are negative 72 hours before departure and they are fully vaccinated?

Answer: 1. Vaccines are only effective against Covid snd Delta variant to some extent, much less than 100%; 2. Although PCR test shows negative, there are chances for a passenger to get infected on the plane and at airport....these are number of such cases reported before...to be 100% sure these passengers have to do another PCR test known arrival at the airport. 3. Quarantine is required because it takes time for a person to show symptoms after getting infected. A person has negative PCR test result before boarding the plane, later gets infected on the plane by another passenger, upon touchdown his PCR test result on the spot could still be negative. A few days after he starts quarantine at hotel, he starts having fever and shows other Covid symptoms, when the doctor dies another PCR test, the result is Positive.

Therefore to play safe quarantine is still required. It is too risky to trust vaccination history as vaccines are not 100% secure, and too casual to accept PCR test result conducted 3 days earlier.

First I wanna apologies as I dun and hate reading long essay … I tried but dropped off on the second sentences. I like point form… short and sharp.

Question: Can you tell me why Britain, Israel and Spore are getting thousands of breakthrough cases everyday after majority of populations are fully vaccinated?
Part of the herd immunity processes. Vaccination provides protection but some will die but many will live. Part of endemic process

Many times I stated vaccine is not immunisation and have stated, never 100% but give us a good fight chance which through 2021, proven so. Anyway, only fools believe in 100% … only death is 100% certain. I assume you misunderstand my understanding.

As for the rest … sorry.