Research has shown that rinsing your mouth with a commercially available mouthwash can temporarily suppress coronavirus (Sars-Cov-2) infection.

However, scientists emphasized that this method is not suitable for treating COVID-19 or blocking the infection itself, and is only useful in special circumstances, such as dental care or treating patients with COVID-19.

The results of this study, which Germany's Bochum Ruhr University collaborated with Jena University, Ulm University, Duisburg-Essen University, Nuremberg University, and Bremen University, were recently published in the Journal of Infectious Diseases.

According to an outline of a paper published online (www.eurekalert.org), large amounts of novel coronavirus particles are often found in the mouth and throat of patients with COVID-19.

The research team concludes that these patients can reduce their risk of transmission in the short term by reducing the amount of virus if they use an effective mouthwash.

In this experiment, 8 types of mouthwash (gargle liquid) currently sold in pharmacies in Germany were used.

The research team put an infection-blocking substance that would replace saliva in mouthwash with different ingredients, along with coronavirus, and shaken it for 30 seconds.

Then, the virus titer was measured by applying it to cells for cultivation of'Vero E6', which has particularly good coronavirus solubility.

As a result, viral titers were lowered in all of the cleaners tested, and no virus was detected, especially in the three.

Virus titer refers to the result of measuring the amount of infectious virus by measuring the positive rate of infection reaction.

A lower titer means that the risk of infection is reduced by that amount.

The research team pointed out that "Gagling (mouth rinse) with an oral cleanser cannot suppress the growth of intracellular viruses."

However, researchers in Germany, led by Borkum Ruhr University, are exploring the possibility of clinical trials in patients.