Fig. 4

Venn diagram showing the distribution of microbiota belonging to the major phyla at day 0 and at day 8 of the household children of cholera patients. Bacterial families with the relative abundance of ≥ 0.1% were considered for comparison. A total of 65 families were confirmed at day 0 of which 54 were common at both time points, day 0 and day 8, and 6 families were new and acquired as confirmed for household-contact children of cholera patients at day 8, after the delivery of chlorinated water as part of the cholera-hospital-based water, sanitation, and hygiene (WASH) intervention for 7 days (CHoBI7). In the middle circle (overlapped/common) of microbiota, name of 8 genera could not be accommodated, they belonged to the following phyla: Cyanobacteria (2), Euryarchaeota (1), Elusimicrobia (1), Fusobacteria (1), Spirochaetae (1), Synergistetes (1), Tenericutes (1)