Vaccines can not prevent infection, but they can prevent deaths and hospitalization.
Australia-based nurse Denmark Suede said based on world data, vaccines do not necessarily prevent infections or reinfections but it can minimize the possibility of deaths and hospitalizations.
Booster shots could also help maintain efficacy of the vaccines, whose effectiveness could drop to up to 33 percent after six months.
A booster shot can improve the vaccine’s efficiency to 90 percent protection against infection.
He added that two shots of Pfizer without booster gives one 70 percent protection against hospitalization and deaths.
He cited the numbers in southeast portion of Australia, particularly Sydney, 49.5 for every 100,000 of the population can be infected by COVID at the height of the Delta variant; however, among the unvaccinated, the number could go up to 561 for every 100,000.
As for deaths, .9 could die for every 100,000; among the unvaccinated, the numbers could also go up to 15.6.
Death rates are also lower in countries with higher vaccination rates, Suede said.
He said in the Philippines, for instance, there are 14,454 confirmed cases for last 14 days, with 831 deaths and a vaccination rate of 45 percent. This means the mortality rate is at 5.7 percent.
Thailand, on the other hand, has a higher vaccination rate at 65 percent with one percent mortality rate at 383 deaths our of 38000.
Australia, which has a vaccination rate of 91 percent has a death rate of only .05 percent at only 113 deaths out of 212,000 cases.
Vaccines could save lives, he said.