Fresno County rattlesnake encounters rise early, vets urge caution

Rattlesnake encounters are climbing early across Fresno County, and local veterinarians are warning that the season is arriving with more force than usual in rural and suburban areas.

The California Poison Control System has taken 77 rattlesnake encounter calls so far in 2026, well ahead of the pace that typically adds up to about 200 rattlesnake-related calls in a full year. Dr. Rais Vohra, the medical director for the Fresno/Madera Division of the agency, said three encounters have already been fatal this year, a pattern he described as highly unusual and deeply concerning.

The fatalities reported in California happened on Feb. 1 in Irvine, March 14 in Thousand Oaks and April 8 in rural Mendocino County. Poison control officials say rattlesnakes are common on hiking trails and in rural areas across the state, but the risk rises fast as weather warms and people spend more time outdoors. The agency says rattlesnake exposure calls are especially common from April through October.

Doctors in the Central Valley say the season has already turned serious. ABC30 Fresno reported that California has seven species of rattlesnakes, including the Northern Pacific rattlesnake, which is common in Central California. A Kaweah Health emergency medicine doctor said severe cases had already started showing up by mid-April, and that prevention is easier than treatment once a bite happens.

Health officials say the safest response is immediate emergency care. California Poison Control System advises calling 911 right away after a bite and contacting the Poison Hotline at 1-800-222-1222. UC Davis Health and poison control warn against cutting the wound, using a tourniquet, trying to suck out venom, or applying ice or heat, all of which can make the injury worse or delay care.

Pet owners are also being warned to stay alert on walks, in yards and near brush. Poison control says many veterinarians now carry rattlesnake antivenom, and some also offer vaccines for dogs and other pets, giving owners more options if an animal is bitten. In Fresno County, where the edges between neighborhoods, orchards and open land can blur quickly, that added caution may make the difference between a close call and a medical emergency.