Related by context. Frequent words. (Click for all words.) 40 flu 40 mumps outbreak 39 H#N# swine flu 39 H#N# flu 39 influenza 38 class 38 seasonal influenza 38 flu bug 38 seasonal flu 38 H#N# influenza 38 H#N# influenza virus 37 flu outbreak 37 mumps 37 senioritis 36 viral meningitis 36 antiviral medication 36 flu viruses 36 pinkeye 35 viral pneumonia 35 swine flu 35 H#N# flu pandemic 35 Flu 35 strep throat 35 milder 35 Seasonal flu 34 A/H#N# influenza 34 sniffles 34 sinus infection 34 H#N# pandemic 34 stomach bug 34 flu strains 34 H#N# strain 34 H#N# 34 influenza strains 34 charley horse 34 flulike symptoms 34 meningococcal 34 seasonal allergies 34 Mumps 34 pertussis 34 H#N# virus 34 whooping cough 34 meningococcal meningitis 34 flu virus 34 A/H#N# flu 34 A/H#N# 33 mosquito borne virus 33 chicken pox 33 swine flu virus 33 chickenpox 33 bacterial pneumonia 33 meningococcal disease 33 influenza virus 33 elbow soreness 33 atypical pneumonia 33 methicillin resistant staphylococcus aureus 33 mosquito borne illness 33 lingering soreness 32 swine influenza 32 vomiting bug 32 Staph infections 32 mosquito borne 32 sprain 32 virus 32 Influenza 32 respiratory infection 32 Swine flu 32 encephalitis 32 middle 32 respiratory viruses 32 bacterial meningitis 32 Whooping cough 32 Hepatitis C virus 32 coronavirus 32 kennel cough 32 heaviest rainfall 32 wealthier 31 H#N# Swine Flu 31 Tai Chi 31 mosquito borne disease 31 malady 31 pneumonia 31 swine flu pandemic 31 superbug 31 shin splints 31 flus 31 pinched nerve 31 Medicare recipients 31 necrotizing fasciitis 31 upper respiratory infections 31 meningitis 31 viral fever 30 glandular fever 30 hepatitis 30 upper #s 30 herpes virus 30 ailment 30 H#N# Flu 30 parvovirus 30 strep 30 bacterial strains