Fact Check: Bill Gates Not Behind Tick-Borne Meat Allergy

False claims circulating on social media allege that philanthropist Bill Gates is responsible for a proliferation of ticks in the US that cause meat allergies. These claims are being debunked by fact-checkers, who clarify the actual nature of the funding and the science behind the allergy.

Fact-checkers state that Bill Gates is not to blame for any increase in ticks in the US. The Bill & Melinda Gates Foundation has indeed funded several projects, but these aim to reduce the population of ticks that are dangerous to cattle, not to increase them. These ticks cause billions of dollars in losses annually, particularly impacting smallholder farmers in Africa and South America.

One such project, initiated in 2021 with approximately $1.28 million in funding from the Gates Foundation to biotech company Oxitec and animal health partner Clinglobal, sought methods to control cattle tick populations without relying solely on chemical pesticides. Further funds were allocated in 2023 for Oxitec's research. Also in 2023, the foundation supported the development of RaTexT, a diagnostic tool to help farmers and veterinarians identify tick resistance to acaricides.

The allergy in question, known as alpha-gal syndrome, is a severe reaction that can develop after certain tick bites. The tick's saliva transmits an alpha-gal molecule into the human bloodstream, leading to allergic reactions upon consuming red meat or other mammal products. However, the ticks targeted by Gates-funded projects, such as Rhipicephalus microplus, primarily affect livestock and spread animal diseases. Alpha-gal syndrome is most commonly transmitted by the lone star tick (Amblyomma americanum), which is unrelated to the cattle ticks receiving attention from the Gates Foundation's initiatives.