Israeli veterinary services on Tuesday transferred thousands of vaccines to the Palestinians amid growing concerns that isolated cases of cowpox and plague will spread through the West Bank.

Israel sent 113,000 vaccine doses to the Palestinian Authority, and as many as 700,000 will be delivered in the coming days.

The diseases, which sicken cattle and sheep, have so far affected herds south of Mount Hebron, near Ramallah, Nablus and Jenin. But there are concerns the problem could become an epidemic endangering all livestock in the PA.