Table 2.

Frequency of the serotype distribution of S. flexneri subtypes

National and International studies	S. flexneri subtypes identified in order of dominance
Present study, India (n = 101)	2a > 6 > 3b > 1b > 1v > 4
Kolkata, 2010, India (n = 154)	2a > 3a
Kolkata, 2014, India (n = 47)	2a > 3a > 6 > 4a > 7a/1c
Bay of Bengal Islands, India 2014 (n = 55)	2a > 4a > 3b = X > 3a = 1a = 6
China, 2013 (n = 4295)	2a > 4c/Xv > X > 4a = 1a > 2b > Y >  6 > 4b > 5a = 3a > 1b
China, 2017 (n = 545)	2a > 2b > 1a > 1b > X > 4c/Xv > Y > 6 > 4a > 3b
China, 2018 (n = 365)	2a > 1b > 2b > 6 > X > 1a > Y > 4 s/Z > 4a = 3a > 2c > 7a/1c = 3b
Bangladesh, 2014 (n = 415)	2a > 2b > 3a > 6 > 1b > 4a > 7a/1c > Y > 5b > 1a > 3b
Gems, 2014, 7 countries (n = 745)	2a > 6 > 2b > 3a > 1b > 4a > 7a/1c > X > Y>1a = 5b > 3b
Bangladesh, 2018 (n = 3569)	2a > 3a > 2b > 6>1b > 7a/1c > 4 s/Z > Y>1a > 3b = X > 4a = 5a > 4b > 5b