Chikungunya is one of the viral diseases for which no specific cure or vaccine is available .it is not new to India. An epidemic was first reported in 1963 -1965 in Kolkata. Kolkata and Kerala were the worst affected states in 2008. No specific treatment or vaccine available at present for chikungunya, so only method is prevention.

The term 'asthma' is taken from the Greek meaning ' panting' or 'labored breathing'. Asthma is a condition characterized by a paroxysmal wheezing respiration dyspnoea (difficulty in breathing), mainly expiratory. Asthma is a disease that intermittently influences the lungs.