Table 1.

The bacteria present in brain which can impact on AD

Sr. no.	Name of bacteria which can influence in AD brain	References
1	Escherichia coli	Zhan et al. (2016)
2	Chlamydia pneumoniae	Balin et al. (2018)
3	Helicobacter pylori	Kountouras et al. (2009)
4	Lactobacillus fermentum	Wang et al. (2015)
5	Bacteroides fragilis	Lukiw (2016)
6	Klebsiella pneumonia	Bieler et al. (2005)
7	Mycobacterium tuberculosis	Alteri et al. (2007)
8	Salmonella typhimurium	Castelijn et al. (2012)
9	Salmonella enterica	Solomon et al. (2005)
10	Bacillus subtilis	Romero et al. (2014)
11	Pseudomonas	Dueholm et al. (2010)
12	Streptococcus mutans	Oli et al. (2012)
13	Candida albicans	Garcia et al. (2013)