Essay On Aeromonas

Discovery and description of Aeromonas species:
From the discovery of genus Aeromonas in 1943 till mid - 1970s, aeromonads are initially divided into two major groups; based upon growth characteristics and other biochemical features (Janda, and Duffey, 1988). This mesophilic group, typified by A. hydrophila, consisted of motile isolates that grew well at 35 °C to 37 °C and are associated with a variety of human infections (Ref ). In the second group, referred to as psychrophilic strains, caused diseases in fish that are nonmotile, and had optimal growth temperatures of 22 °C to 25°C. This group represent with isolates that currently reside within the species A. salmonicida (Ref ). Ten year following mid-1970s, several other groups were interested in the work that include Institute Pasteur, Paris, Centers for Disease Control and Prevention, Atlanta, USA, and Walter Reed Institute of Research, Washington USA. These institutes spearheaded an effort to redefine this

Aeromonads are literally responsible for a “cornucopia” of intestinal and extraintestinal diseases and syndromes, ranging from relatively mild illnesses such as acute gastroenteritis to life-threatening conditions, including septicemia, necrotizing fasciitis, and myonecrosis (142). The panorama of maladies linked to this genus goes far beyond those listed above and includes intra-abdominal problems, ocular disease, infections of bones and joints, and even less frequently observed conditions involving the respiratory and urogenital tracts. Based upon frequency, Aeromonas clinical infections fall into four broad categories, namely, (i) gastrointestinal tract syndromes, (ii) wound and soft tissue infections, (iii) bloodborne dyscrasias, and (iv) a miscellaneous “catch-all” category which includes a myriad of less frequently encountered ailments and infectious