One Bite, 54 Doses: The Rattlesnake Attack That Nearly Claimed a Life in Oroville

When Chris Howarth stepped into his parents’backyard in Oroville on May 26 to check the waterline, he thought he’d walked on a thistle. He was wrong. Two puncture wounds later, he was about to endure one of the most harrowing medical emergencies of his life—and expose a critical gap in Northern California’s readiness for a spring surge in rattlesnake attacks.

What started as a routine family visit turned into a 12-day battle against venom that wouldn’t quit. Chris felt the immediate burn of the bite, but the real nightmare came at Oroville Hospital when one puncture wound, which had pierced directly into his bloodstream, unleashed venom that no amount of initial antivenom could fully neutralize. By day three, his body had developed disseminated intravascular coagulation—a life-threatening blood clotting disorder that left him bleeding out internally. His wife Jenny, a nurse, watched helplessly as her husband’s condition deteriorated. By day six, the hospital had exhausted its antivenom supply. Chris described writing goodbye letters to his children, unsure if he’d survive.

The transfer to Stanford Hospital marked a turning point. Physicians there administered a different antivenom formula, and Chris finally began to stabilize. In total, he needed 54 doses of antivenom—36 at Oroville Hospital and 18 at Stanford—an extraordinarily rare and sobering number. According to Rais Vohra, medical director for the California Poison Control System’s Fresno-Madera division, most patients need only a handful of doses. Chris’s case represents the worst-case scenario on the clinical spectrum.

What’s particularly striking is the context. This year has seen an explosion of rattlesnake activity across California—at least 249 bites reported as of early July, with three fatalities. A March heat wave triggered an early season surge, catching many people off-guard. And here’s the kicker: wet, cool weather doesn’t mean you’re safe. In fact, it makes snakes harder to detect. When Chris’s father went to kill the offending rattlesnake, he discovered its rattle was muffled by mud and moisture, stripping away the one warning most people rely on.

Chris has returned to his home in Meridian, Idaho, but six weeks later he’s still unable to work as a letter carrier and experiencing lingering symptoms. His family launched a GoFundMe to cover medical expenses. While both hospitals provided excellent care, the Howarths want people to understand that rattlesnake danger isn’t seasonal—it’s year-round, unpredictable, and potentially catastrophic. As Jenny put it: I’m a nurse and I had no idea how serious it could be.