内容摘要：, and now they have nowhere else to go,” he told The Associated Press.

, and now they have nowhere else to go,” he told The Associated Press.

An outbreak of eight measles cases in Erie County in far northwest Pennsylvania has remained steady since it began in mid-April.Tennessee has had six measles cases since early May, but no change since. Health department spokesman Bill Christian said all cases are the middle part of the state, and that “at least three of these cases are linked to each other” but declined to specify further. The state also did not say whether the cases were linked to other outbreaks or when Tennessee’s outbreak started.

Measles cases also have been reported in Alaska, Arkansas, California, Florida, Georgia, Hawaii, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Minnesota, Missouri, Nebraska, New Jersey, New York, Rhode Island, Vermont, Virginia and Washington.Cases and outbreaks in the U.S. are frequently traced to. The CDC says more than twice as many measles have come from outside of the U.S. compared to May of last year, and most of those are in unvaccinated Americans returning home. In 2019, the U.S. saw 1,274 cases and almost lost its status of having eliminated measles.

The best way to avoid measles is to get thevaccine. The first shot is recommended for children between 12 and 15 months old and the second between 4 and 6 years old.

Getting another MMR shot as an adult is harmless if there are concerns about waning immunity, the CDC says. People who have documentation of receiving a live measles vaccine in the 1960s don’t need to be revaccinated, but people who were immunized before 1968 with an ineffective vaccine made from “killed” virus should be revaccinated with at least one dose, the agency said.

People who have documentation that they had measles are immune, and those born before 1957 generally don’t need the shots because so many children got measles back then that they have “presumptive immunity.”However, for that airport, once an aircraft reaches 673 feet (205 meters), the pilot also has to rely on sight.

“If a pilot descends to that level and he can’t see the runway, he has to call for a missed approach or divert to another airport,” Newman said.In October 2021 a twin-engine plane

, killing the pilot and a UPS delivery driver on the ground and burning homes. It was preparing to land at the airport.And in December 2008, a Marine Corps fighter jet slammed into a house in San Diego’s University City neighborhood, causing an explosion that killed four people inside. The Marine Corps blamed the crash on mechanical failure and human error.