3 days ago
Tick season is here — and it's worse than last year
Summer is here, and that means tick frenzy is, too.
Why it matters: Ticks, which are most active in warmer seasons, transmit Lyme disease through bacteria in their bite. The disease causes rash, flu-like symptoms and joint pain — and can be fatal if untreated.
Driving the news: Tick densities on average are higher this year compared with last year, San Francisco State University biology professor Andrea Swei told Axios.
At Swei's field sites in Marin and San Mateo counties, average nymph densities are up around 20% to 30% this year. Nymphs transmit diseases at higher rates than adult ticks.
The Bay Area Lyme Foundation has recorded a similar increase in regional tick activity, particularly in chaparral areas, local parks and redwood forests.
Zoom in: On the West Coast, Lyme is spread by the Western black-legged tick, which has a three-year life cycle and is abundant along California's north coastal areas, according to Swei.
Caveat: While ticks are traditionally associated with grassy areas and bushes, a 2021 study found Lyme-carrying ticks in beach areas at equal rates to woodland habitats in some parts of northwestern California.
What they're saying: When outdoors, "we recommend wearing white so the ticks are more visible, tick-checking yourself and your gear when you arrive home and two days later, and being vigilant to see a doctor if you have any symptoms," Bay Area Lyme Foundation executive director Linda Giampa told Axios via email.
They often first attach to pets.
You can also treat clothing and gear with products containing 0.5% permethrin as a preventative measure, per the CDC.
What to expect: If you find a tick attached to your body, the best way to remove it is to position tweezers between your skin and the tick's mouth and tug gently to remove the whole thing.
Don't squish it; flush it down the toilet.
Ticks can spread disease within hours of attaching to a person.
