Black Widow Spider in our garage in Kelowna BC

The venom of the female black widow spider is 15 times as toxic as the venom of the Prairie Rattlesnake. Only a minute amount of the toxin is injected in a single bite by the spider however, so they are rarely fatal. The female black widow spider is the most venomous spider in North America.

The bite is like a pin prick but causes pain within a few minutes of the attack. The pain spreads rapidly to arms, legs, chest, back, and abdomen. Chills, vomiting, difficult respiration, profuse perspiration, delirium, partial paralysis, violent abdominal cramps and spasms may occur within a few hours of the bite. The victim usually recovers in 2 to 5 days; about 5% of all black widow attacks are fatal. The black widow, however, usually bites people only when its web is disturbed.

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