Marin County is seeing a spike in whooping-cough cases.

They are having the second highest number of reported cases of the disease in California so far this year.

In January, local doctors in Marin County saw a spike of whooping-cough cases–around 30 total among local high school students and that trend is continuing upwards.

To date, there have been over 130 cases in the county.

That’s the second highest number of reported cases in the state so far this year.

The deputy health director for Marin County says it’s a disease that can be hard to diagnose.

The Marin County Health Department is reaching out to those exposed to make sure any infants or pregnant women in their households that they are protected. During the last big California outbreak in 2014, two babies died.

It is recommended that newborns get their first vaccine in the five-shot series starting at 2 months.

Students are required to get a booster shot as they enter kindergarten and then again in seventh grade.

As to why this outbreak is happening now, health officials say it’s the natural cycle of the disease, with an outbreak every three-to-five years.

Everyone is encouraged to get a booster shot every 10 years.

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