There is an outbreak of watery diarrhea due to Shigella occurred in several day care centers in Pondicherry. Which Shigella sp. is most likely involved?
S. boydii
S. flexneri
S. sonnei
S. dysenteriae
S. flexneri- most common in India- Shigella sonnei is the most common in developed countries and generally causes a watery diarrhea.- Shigella dysenteriae causes dysentery characterized by tenesmus and the production of scanty, bloody stools.
Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli)