43-year-old, who had been vaccinated with 1 dose out of the recommended 2, becomes 3rd fatality in recent outbreak of highly contagious disease

Largest outbreak since 1992; Health and Human Services Secretary Alex Azar calls to step up campaign to halt spread of misinformation about vaccines

Authorities say disease's spread most prevalent in Orthodox Jewish communities

More than 250 El Al workers vaccinated at special center set up at Ben Gurion airport; flight attendant in coma after contracting disease on a flight from New York

Both patients feared to have suffered brain damage; as disease spreads, report warns some 45,000 Israeli kids may not be vaccinated

First quarter of 2019 sees 112,000 reported cases, up from 28,000 in same period last year; in US, ultra-Orthodox vaccine skeptics are epicenter of spread