Chlamydia pneumoniae, a bacterium that causes pneumonia and other respiratory diseases, may cause Alzheimer's disease.
According to WION, Australian scientists have come to this conclusion from Griffith University and Queensland University of Technology according to a new study.
This bacterium tends to live in the nose. As scientists have found, it can infect the olfactory and trigeminal nerves, and then the olfactory bulb, which is located in the forebrain within 72 hours after entering the nose. The tests were carried out on mice.
According to the researchers, after that the bacterium reaches the brain. Once in the central nervous system, Chlamydia pneumoniae causes changes associated with Alzheimer's disease.