He is particularly known for his studies of the chancroid and the coccobacillus haemophilus ducreyi.
2.
Bacteria from the " Brucella " genus are medically important coccobacilli that cause brucellosis . " Haemophilus ducreyi ", another medically important Gram-negative coccobacillus, is observed in sexually transmitted disease, chancroid, of Third World countries.
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