Availability of "proper officers" out of office hours to manage urgent communicable disease and environmental health problems.
D003140:Communicable Disease Control; D004632:Emergency Medical Services; D004739:England; D004782:Environmental Health; D006801:Humans; D010820:Physicians / Q000600:supply & distribution*; D011635:Public Health Administration / Q000458:organization & administration; D013997:Time Factors; D014852:Wales; D000078329:Workforce