Palestinian agriculture workers inject a dose for sheep against Brucellosis, in Beit Lahia in the northern Gaza Strip, on August 25, 2021. Brucellosis is a bacterial disease caused by various Brucella species, which mainly infect cattle, swine, goats, sheep and dogs. Humans generally acquire the disease through direct contact with infected animals, by eating or drinking contaminated animal products or by inhaling airborne agents. Most cases are caused by ingesting unpasteurized milk or cheese from infected goats or sheep. Photo by Omar Ashtawy