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Thailand trials U.S.-developed elephant birth control vaccine to curb human-elephant conflicts.
Thailand has begun using a U.S.-developed birth control vaccine on wild elephants in Trat province to reduce human-elephant conflicts caused by expanding farmland encroaching on forests.
The vaccine, tested on domesticated elephants with success, prevents fertilization and provides up to seven years of contraception.
Three wild elephants received doses in late January 2026, with 15 doses remaining.
Officials cite 30 human deaths, 29 injuries, and over 2,000 crop damage incidents in 2025 as key drivers.
The program targets high-conflict zones where elephant populations grow at 8.2% annually, more than double the national average.
Authorities are monitoring vaccinated elephants and combining the effort with fencing, habitat enrichment, and ranger-led guidance.
Tailandia prueba una vacuna anticonceptiva de elefantes desarrollada en los Estados Unidos para frenar los conflictos entre humanos y elefantes.