4 Furthermore, scientific studies have proven that the virus persists for 2 days on the mucous membranes of macaques 5 before the subsequent spread of the virus to the lower respiratory tract. 2, 3 SARSCoV-2 is spread by human-to-human transmission the infection is estimated to have an average incubation period of 6.4 days and a base reproduction number of 2.24–3.58. 1 Hydrogen peroxide is already widely used as an environmental, surgical disinfectant and as an oral disinfectant in the treatment of gingivitis. To prevent the spread of the virus, in February 2020, the Italian government issued a recommendation, among the methods of sanitizing the environments, for the use of 0.5% hydrogen peroxide. Although prevention of person-to-person transmission is the key to limiting the pandemic, so far, little attention has been given to the events taking place immediately after the onset of the first symptoms. The virus resides in the mucous membranes and it is transmitted through the saliva and the respiratory droplets. The current pandemic appears to be characterized by human-to-human transmission it occurs through cough, sneeze, droplet inhalation, and direct contact of hands with mouth, nose, and eyes. To the Editor-The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the virus responsible for COVID-19, which emerged in Wuhan, China, in December 2019.
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