Which is NOT a duty of environmental health officers in field deployments?

• A. Inspect and enforce sanitation and safety standards
• B. Sample water and food
• C. Advise on vector control
• D. Administer vaccines to patients

Answer: (D)

Environmental health officers in field deployments concentrate on reducing environmental risks to health. Their duties include inspecting sites to enforce sanitation and safety standards, collecting samples of water and food to check for contaminants, and advising on vector control measures to prevent disease transmission. Administering vaccines to patients falls outside the typical environmental health role because vaccination is a clinical preventive service that requires medical training and credentials; vaccines are usually given by nurses or physicians, with EHOs providing support, coordination, or public health guidance rather than direct administration. The other duties align directly with environmental health responsibilities in the field.