A study reveals unexpected results of the deadly effects of bacteria

A study reveals unexpected results of the deadly effects of bacteria

A study reveals unexpected results of the deadly effects of bacteria
A study reveals unexpected results of the deadly effects of bacteria


A study published on Wednesday found that Listeria bacteria, which cause a rare but very dangerous food infection, sometimes succeed in reaching the brain by prompting some infected cells to fight the immune system.


The study, which was conducted on animals and published in the journal Nature  indicated that this mechanism keeps cells alive for longer periods in the blood and makes them reach greater numbers in the brain. 


Listeria bacteria is the main cause of listeriosis, which is a rare food infection, with a few hundred infections recorded annually in France, but it is fatal in the event of infection, as it leads to the death of about a quarter of the infected.


One of the complications that leads to death is damage to the nerves, which results from the arrival of bacteria to the central nervous system, which includes the brain and spinal cord.


The study  which was conducted on mice in several stages and reflected the progression of the disease in humans, showed that Listeria is transmitted to the brain through mononuclear cells a type of white blood cell.


The researchers discovered how these infected cells reached the brain without being eliminated by the immune system  to show that a protein present in Listeria protected the bacteria.


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