The mawr infectious the virus, the more it matters to get a high proportion of the population vaccinated at least 90% for measles, more like 66% for co vid the Mawr people who can receive the vaccine on get it, the less the virus has a chance to thread in the community, and therefore we minimize the risk to those vulnerable people in whom the vaccine doesn't really work as well as it might.
病毒的傳染性越強,越是要讓高比例的人口接種麻疹疫苗,至少90%,更像66%的人可以接受疫苗的Mawr人得到它,病毒越少有機會在社區中的線程,是以我們儘量減少風險,那些脆弱的人在其中的疫苗並不真正工作,因為它可能。