Which of the following diseases is not caused by smoking?

Epidemiology deals with the study of

The use of vaccines and immunisation programmes have enabled us to completely eradicate a deadly disease like

Where is the antivenom for snake bites produced?

Why is it that during changing weather,one is advised to avoid closed,crowded,and air-conditioned places like cinema halls?

Which of the following three scientists were awarded the Nobel Prize in $1945$ for the discovery and development of penicillin?
$(i)$ Alexander Fleming
$(ii)$ Louis Pasteur
$(iii)$ Walther Flemming
$(iv)$ Ernst Chain
$(v)$ Howard Florey
$(vi)$ Oswald Avery