February 18, 2021 Village and community health volunteers are the eyes and ears of Thailand's disease control system, contributing greatly to the country's effective COVID-19 response. — Courtesy photo GENEVA — The COVID-19 pandemic demonstrates “intimate” linkages between the health of humans, animals, and ecosystems, as zoonotic diseases spread between animals and people, the World Health Organization (WHO) chief said on Wednesday. While the concept of One Health — where multiple sectors communicate and work together to achieve better public health outcomes — may have once seemed simple, “it is no longer”, WHO Director-General Tedros Adhanom Ghebreyesus said, opening the 27th Tripartite Annual Executive Committee Meeting World Organization for Animal Health (OIE).