A new study finds that cash transfers had limited outcomes for increasing vaccination efforts among adults. The impact of lottery programs also was limited, and there was no evidence that other ...

Syringe needles are a major barrier to vaccine acceptance. A 2021 study found that more than a quarter of adults in the United Kingdom are afraid of injections, leading to a higher rate of vaccine ...

Vaccines can be a crucial conservation tool. But getting shots to wildlife, and developing them in the first place, is tough.