Fig. 1

Differential taxa enrichment between individuals from flu infection and no infection households. a PCA plot of diversity of the microbial composition for different influenza infection households. Blue indicates high flu infection households, turquoise indicates low flu infection households, and gray indicates control households. Differential abundance of bacteria between high flu infection versus no flu infection or between low flu infection versus no flu infection households. b PCA plot of diversity of the microbial composition for flu-negative individuals from flu infection or control households. Red indicates flu infection households, and gray indicates control households. Differential abundance of bacteria between uninfected individuals from flu infection and control households. Numbers next to bacterial taxa names indicate relative abundance ranking across all samples; taxa in bold are part of the top 30 most abundant taxa (see Fig. S2)