Kostmann syndrome is a severe congenital neutropenia. Which disorder/infection is characteristic of this condition?

Answer is severe bacterial infections.

Explanation:

Congenital neutropenia is known as a disorder, specifically, of the bone marrow, where blood is being produced. This disorder can be detected or present at birth, and it is due to the absence of neutrophils.

Neutrophils are type of white blood cells, that are very important in fighting infections.

It is known that people, especially the children having this disorder are prone to having recurrent bacterial infections like pneumonia and urinary tract infection.

Note that, the severe form of congenital neutropenia is called Kostmann syndrome.