Which species of Shigella is most commonly associated with diarrheal disease in the United States?

Which species of Shigella is most commonly associated with diarrheal disease in the United States?

• A. S. dysenteriae
• B. S. flexneri
• C. S. boydii
• D. S. sonnei

Answer: (D)

The species of Shigella most commonly associated with diarrheal disease in the United States is Shigella sonnei. This strain is responsible for the majority of shigellosis cases in the country. S. sonnei is known for causing a less severe form of theinfection compared to other species, which can lead to outbreaks, particularly in settings such as daycare centers and crowded living conditions. S. sonnei typically leads to mild to moderate diarrhea, and its prevalence in the U.S. can be attributed to factors such as its ability to spread easily in populations and its resistance to certain public health measures. The organism is capable of causing quick and significant outbreaks, making it a significant public health concern. Other species of Shigella do exist, but they are less frequently associated with diarrheal disease in the U.S. For example, Shigella dysenteriae, while it can cause severe dysentery, is less common in North America. Shigella flexneri and Shigella boydii are also involved in diarrheal disease but do not occur as frequently as S. sonnei in the United States. Thus, S. sonnei stands out as the primary species of concern for shigellosis in this region

The species of Shigella most commonly associated with diarrheal disease in the United States is Shigella sonnei. This strain is responsible for the majority of shigellosis cases in the country. S. sonnei is known for causing a less severe form of theinfection compared to other species, which can lead to outbreaks, particularly in settings such as daycare centers and crowded living conditions.

S. sonnei typically leads to mild to moderate diarrhea, and its prevalence in the U.S. can be attributed to factors such as its ability to spread easily in populations and its resistance to certain public health measures. The organism is capable of causing quick and significant outbreaks, making it a significant public health concern.

Other species of Shigella do exist, but they are less frequently associated with diarrheal disease in the U.S. For example, Shigella dysenteriae, while it can cause severe dysentery, is less common in North America. Shigella flexneri and Shigella boydii are also involved in diarrheal disease but do not occur as frequently as S. sonnei in the United States. Thus, S. sonnei stands out as the primary species of concern for shigellosis in this region