Communicable diseases 145 Communicable Diseases 88 Epidemiology 23 Infection 22 Prevention 22 Public Health 20 Maladies infectieuses 15 Infections 14 Public health 13 Infectious & contagious diseases 12 Microbiology 12 Communicable Disease Control 11 Medical microbiology 11 AIDS & HIV|Communicable Diseases|HEALTH & FITNESS / Diseases / AIDS & HIV|MEDICAL / AIDS & HIV|Medicine|Medicine and Health Sciences|Public aspects of medicine|Public health. Hygiene. Preventive medicine 10 Communicable Diseases|Infectious and parasitic diseases|Internal medicine|Medicine|Medicine and Health Sciences 9 Epidemics 9 Tropical medicine 9 AIDS (Disease) 8 Transmission 8 non-communicable diseases 8 Health & Biological Sciences 7 Medicine 7 epidemiology 7 obesity 7 Bacterial Infections 6 Infection Control 6 Medical 6 Research 6 nutrition 6 public health 6