............ is an infection spread by house fly.
Typhoid is a bacterial infection that can lead to a high fever, diarrhoea, and vomiting. It can be fatal. It is caused by the bacteria Salmonella typhi. The infection is often passed on through contaminated food and drinking water. When the fly lands on a food item or surface, the disease-causing agent can get transmitted via the body hairs and legs.
Thus, the correct answer is option A.