All the diseases are spread by housefly except
Leprosy
Dysentery
Typhoid
Sleeping sickness
Oncogene is another name for
$A$ - Acid in the stomach and saliva in the mouthare examples of physiological barrier.
$R$ - Tears from eyes is example of physicalbarrier.
The tranquillisers differ from the sedatives that they
Symptoms of diphtheria is
Lymph nodes