Picture 18
This picture shows Salmonella typhi cultured in MacConkey's agar.
Salmonella typhi
Morphology: Gram negative cocci that do not ferment lactose, do not produce gas like other species of Salmonella but produce H2S in small quantities
Route of transmission: Food borne
Investigations: Gram stain, organism cultured on MacConkey's agar and Triple Sugar Iron (TSI) medium
Diseases:
Gastroenteritis, from diarrhea to dysentery
Enteric fever (Typhoid fever)
Septicemia
Treatment:
Gastroenteritis is a self-limiting disease, so no treatment is needed
Ceftriaxone and ciprofloxacin are prescribed for enteric fevers and septicemia