Influenza is caused by:

Influenza is caused in human beings by --------

Influenza virus has

Influenza virus has

Influenza virus has

Influenza virus has

Haemophilus influenzae causes :

Influenza viruse has

statement A – Typhoid Mary was a health worker. Statement B – Haemophilus influenzae doesn't cause influenza.

statement A – Typhoid Mary was a health worker. Statement B – Haemophilus influenzae doesn't cause influenza.