The discovery of antibiotics is considered a significant achievement of which century?

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

$A$ state of malfunctioning of the body or parts of the body with specific signs and symptoms is known as.........

Sprinkling oil over ponds would control malaria because

Pasteur and Koch are related to

When children play barefoot in pools of dirty water and flood water,they may suffer from diseases like