Haemophilus Small gram-negative coccobacilli facultative anaerobes. non motile most non-encapsulated strains -- virulent forms encapsulated H influenzae H. ducreyi-( soft chancre Haemophilus influenzae on chocolate agar plate H. aegypticus-(purulent conjunctivitis)Haemophilus • Small Gram-negative coccobacilli, facultative anaerobes, non motile • most non-encapsulated strains --- virulent forms encapsulated • H. influenzae • H. ducreyi -- ( soft chancre) • H. aegypticus -- (purulent conjunctivitis)