A toilet seat can be a bacterial hotspot, with around 295 germs per square inch. Influenza virus, Faecal bacteria, Streptococcus, Salmonella, Shigella, E. coli, Hepatitis, Staphylococcus, and Norovirus are some of the microorganisms that can be found on a toilet seat. Germs such as E. coli can infect the bladder, urethra, and kidney. Women are more likely to have UTIs due to their anatomy.
Toilet bowls can hold 3.2 million bacteria per square inch.
Flush handle can contain up to 83 germs per square inch.