People “should not really consider themselves protected until after a week or two following dose two,” he adds. The researchers now are studying whether outcomes vary for people on specific types of these drugs, the release states. Experts call this a One Health approach or concept, and they want governments to factor it into policies, Robbins reports. As humans move into more of Earth’s natural environments, more spillovers of animal diseases into humans are expected. “The spillover of animal, or zoonotic, viruses into humans causes some 75% of emerging infectious diseases,” Robbins writes.