Related by context. Frequent words. (Click for all words.) 69 Severe Acute Respiratory Syndrome 65 Sars outbreak 65 SARS outbreak 64 SARS 63 SARS epidemic 63 Sars virus 59 SARS virus 56 Sars 54 bird flu epidemic 54 severe acute respiratory 52 syndrome SARS 51 atypical pneumonia 49 dengue outbreak 48 avian flu 48 outbreak 47 dengue fever 47 dengue 47 Dengue 46 bird flu outbreak 46 H#N# avian flu 46 bird flu 45 Avian influenza 45 HFMD 45 flu outbreak 45 Japanese encephalitis 45 Dengue fever 45 Avian flu 44 H#N# flu pandemic 44 H#N# pandemic 44 H#N# 44 meningococcemia 44 avian flu outbreak 44 bird flu outbreaks 44 avian influenza 44 A/H#N# influenza 43 H#N# virus 43 Bird Flu 43 deadly H#N# virus 43 A/H#N# virus 43 Leptospirosis 43 Chikungunya 43 H#N# influenza virus 43 Avian Flu 43 A/H#N# 43 swine flu outbreak 43 H#N# swine flu 43 equine influenza 43 H#N# Influenza 42 equine flu 42 bird flu virus 42 chikungunya 42 H#N# Virus 42 influenza A/H#N# 42 virus 42 flu pandemic 41 Bird flu 41 pandemic 41 avian flu virus 41 H#N# flu 41 Swine Flu 41 isolation wards 41 contagious disease 41 equine influenza EI 41 dengue cases 40 swine flu epidemic 40 Typhoid 40 Influenza 40 outbreaks 40 Japanese Encephalitis 40 HPAI 40 thermal scanners 40 H#N# influenza 39 swine flu pandemic 39 highly pathogenic avian influenza 39 A/H#N# flu 39 avian flu pandemic 39 Tan Tock Seng 39 influenza pandemic 39 superbug 39 dengue virus 39 Pandemic Influenza 39 H#N# avian influenza 39 mosquito borne 39 Avian Influenza 39 avian influenza virus 39 mosquito borne disease 38 respiratory illness 38 slowdown 38 Yeoh 38 swine flu virus 38 H#N# Swine Flu 38 swine flu 38 Ebola 38 bird flu pandemic 38 Communicable Diseases 38 viral fever 38 pandemic influenza 38 Navapur 38 flu epidemic 38 Infectious diseases 38 Chief Executive Tung Chee