Prevention of communicable disease. 2. The impact of communicable disease on the health of urban workers.
D000041:Absenteeism; D002771:Cholera / Q000517:prevention & control; D003140:Communicable Disease Control; D003906:Developing Countries; D005511:Food Handling; D005513:Food Inspection; D006801:Humans; D007114:Immunization; D007391:International Cooperation; D009787:Occupational Medicine; D010578:Petroleum; D012141:Respiratory Tract Infections / Q000517:prevention & control; D012499:Sanitation; D012846:Singapore; D013742:Tetanus / Q000517:prevention & control; D014376:Tuberculosis / Q000517:prevention & control; D014505:Urban Population
D010578:Petroleum