One rural Thai district has the beefiest COVID-19 vaccination enticement yet: a live cow. Everyone who signs up for vaccines in that area is entered into a lottery; once a week, through the end of the year, the bovine prize is awarded. Thailand has been slow to vaccinate its public, but as a big rollout begins this month, officials worry that folks in the upcountry will shirk inoculations. The cow giveaway is working — registration in this mountain district is skyrocketing — and the government will even deliver the animal to the winners’ homes.