<unk>  is caused by pollens of specific seasonal plants and airborne chemicals and dust particles in people who are allergic to these substances. It is characterised by sneezing, runny nose and itching eyes. This seasonal allergic rhinitis is commonly known as<unk> ', because it is most prevalent during<unk> ing season. It is particularly prevalent from late May to the end of June (in the Northern Hemisphere). However it is possible to suffer from<unk>  throughout the year
Hay fever
Lábrea fever
Yellow fever
Chikungunya
Trench fever
Cotton fever
Rat-bite fever
Boutonneuse fever