In this example, at least 17 of every 18 people (more than 94 percent) would need immunity.This threshold is sometimes called the herd immunity threshold.Tags: Online College Essay EditorsHazlitt Essays On The Past And The FutureBook Report Projects For 2nd GradersGcse English Creative WritingRe Coursework AbortionTop Custom Essay ServicesEssay Writings In KannadaDystopian EssaysEssays On Quality Education
Federal health officials said on Thursday that 971 individual cases have been confirmed in 26 states so far in 2019, surpassing the total recorded in 1992, when the last large epidemic occurred.
The disease was declared eliminated in the country in 2000.
Here’s what you need to know about the disease and the risk of getting it. It can cause serious respiratory symptoms, fever and rash.
In some cases, especially in babies and young children, the consequences can be severe.
Infected people can transmit the measles virus starting four days before they develop a rash, so they may be contagious before they realize they have the disease.