Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Haemophilus Infections ?
    ### Response:
    Haemophilus is the name of a group of bacteria. There are several types of Haemophilus. They can cause different types of illnesses involving breathing, bones and joints, and the nervous system.    One common type, Hib (Haemophilus influenzae type b), causes serious disease.
    