"I asked Grok: “In the past 10 years in the entire world, as far as you know, how many people were killed by each of the following? Pit bulls. Border collies. Cheetahs. No need for a long explanation. Just the numbers will be fine.” This is the answer that it gave: Pit bulls: ~400 (U.S. and Canada only; global data unavailable) Border collies: 0 Cheetahs: 3"
In the past 25 years in the USA approximately 1000 people have been killed by dogs. The numbers killed by dog breed are
Breed Number of Fatalities (Est.) Percentage of Total
Pit Bull (incl. mixes) 630 66.3%
Rottweiler 95 10.0%
German Shepherd 40 4.2%
Mixed Breed (unspecified) 30 3.2%
American Bulldog 25 2.6%
Mastiff/Bullmastiff 25 2.6%
Husky 20 2.1%
Labrador Retriever 15 1.6%
Boxer 10 1.1%
Doberman Pinscher 10 1.1%
Other (37+ breeds) 50 5.3%
Pit bulls (including American Pit Bull Terrier, Staffordshire Terrier, and mixes) account for 66% of fatalities (346 of 521 deaths from 2005–2019), despite being ~6.5–8% of the dog population.
In the UK in the same time period there were 56 deaths. Broken down by breed
Breed Number of Fatalities (Est.) Percentage of Total
American Bully XL 35 50.0%
Staffordshire Bull Terrier 15 21.4%
Pit Bull (pre-ban/mixes) 10 14.3%
Other (mixed, unspecified) 10 14.3%
86% by pitbull types.