👉 H2N5 is a type of bacteria that causes chickenpox in humans. It typically spreads through contact with infected skin, often from an adult chicken's blood or saliva. Chickenpox usually affects the face, neck, and arms, but it can also spread to other parts of the body like the legs, back, and head. Symptoms include a rash on the body that looks like a sunken papaya, with small blisters appearing in the palms, soles, and skin