Pathogenesis of Haemophilus influenzae

The non-capsulated variety of Haemophilus influnzae is a very common commensal in upper respiratory tract. 60-80% cases have been found related to non-capsulated strains in the different surveys conducted in urban communities. This was carried in the throat or naso-pharynx of young children and the rates of 3 to 4% was of capsulated type notably … Read more

Differences between antigens and antibodies

S.N Antigens Antibodies 1. Commonly called “antibodies generating chemicals” or immunogens. Commonly called immunoglobulins. 2. Both proteinous or polysachharides. Always proteinous in nature. 3. They are present on the cell membrane. They are present in the plasma. 4. These stimulate the immunity of the body. These protect the body from infections. 5. May be a … Read more