San Diego County health officials are entreating families to get their children vaccinated after three teenagers have died of the flu so far this winter. All three were unvaccinated, and one had underlying health conditions.

It could take weeks or months for the public to know what caused the fire that last month charred 6,600 acres in the Otay Mountain Wilderness as local Cal Fire officials continue their investigation.

The county's latest flu vaccine reminder comes after three unvaccinated teenagers died from the virus this flu season.

Heading into peak flu season, San Diego County is seeing its highest rates of flu cases in five years, public health department data shows. The big picture: A "quad-demic" of illness is hitting simultaneously this winter with high levels of influenza A,

Three teenagers are among 73 individuals who have died from the flu this season, according to San Diego County’s latest respiratory virus data, a statistic that has prompted public health officials to re-promote vaccinations.

Three local teenagers have died from the flu as of Thursday, none of whom were vaccinated, according to San Diego County. The county said a total of 73 people have died from the flu so far this season,