For 40 years, Cuba has been using a molecule named Interferon Alpha 2B , which has successfully been used to combat the new Co[r]onavirus in China and elsewhere.
senior1938voice captures vital paragraphs:
Interferon has been known for more than 40 years: first, it was produced from original sources in local sites, then nationally and later in the United States and even Finland.
One of the ways the virus can multiply inside the cells is by decreasing the levels of Interferon naturally produced in human cells. The molecule thus, through a different metabolic way, can create conditions to limit the replication of the virus.
In China, practically a few weeks after the beginning of the outbreak, people started to use Interferon in a way to avoid complications in people infected with the virus. According to Herrera, this molecule has “some side effects but not too critical.” https://www.telesurenglish.net/news/Cubas-Interferon-Alpha-2B-Successful-in-Treating-COVID-19-20200317-0015.html
“The main idea of Interferon is just to avoid complications,” he told teleSUR. “Young people and people with a good immuno-response perhaps don’t need the medicine or people who won’t have complications and respond to the virus-like any other flu, but old people or people susceptible to have a bad immuno-response will have better chances of avoiding complications by using Interferon.” (click here – read the complete article) (emphasis added)