| sickness(disease, illness, virus) |
| air pollution |
| harmfulness |
| insalubrity |
| pollution |
| affection(noun, disorder, disease, illness, infirmity) |
| affliction(noun, disorder, disease, illness, infirmity) |
| ailment(noun, disorder, disease, illness, infirmity) |
| bad health(expression, disease, illness, virus) |
| bug(noun, disorder, disease, illness, infirmity) |
| complaint(noun, disorder, disease, illness, infirmity) |
| condition(noun, disorder, disease, illness, infirmity) |
| disease(noun, disorder, illness, infirmity, virus) |
| diseasedness(noun, disorder, disease, illness, infirmity) |
| disorder(noun, disease, illness, virus) |
| ill(noun, disorder, disease, illness, infirmity) |
| ill health(noun, expression, disorder, disease, illness) |
| illness(noun, disorder, disease, infirmity, nausea) |
| indisposition(noun, disorder, disease, illness, infirmity) |
| infection(disease, illness, virus) |