"The most important thing was to find out how it was transmitted, because at the beginning, it was said that it was by droplets. It was strange to me that there were 1.000 cases a day and I said - if we all kissed and spat on each other, it wouldn't be like this," says Dr Ana Gligic, who stopped "smallpox epidemic" about 50 years ago.
However, dozens of similar cases have been reported in other European countries, Great Britain and the United States, London's Sky News reported.
A 14-year-old boy from a group of infected children died of the disease at a children's hospital in London last month, and similar cases have been reported in other European countries.
There were hopes that treatment with remdesivir could treat Covid-19.
The search for a cure for the coronavirus across the ocean continues to debate which drug helps and which doesn't. Remdesivir's first tests show that the drug which is used to treat Ebola infected does not offer treatment for COVID-19. Until now, it was thought that it could help fight the epidemic.
In the summer of 430 BCE, a ship from Egypt arrived in Piraeus with an uninvited guest on board: "the plague." The symptoms of this yet-to-be-identiﬁed disease - hypotheses range from typhoid fever to viral hemorrhagic fever - are described by the historian Thucydides, who was infected and survived.
A new case of Ebola virus disease was confirmed in the city of Beni in the Democratic Republic of the Congo (DRC).
"While not welcome news, this is an event we anticipated. We kept response teams in Beni and other high risk areas for precisely this reason," said Dr Tedros Adhanom Ghebreyesus, WHO Director-General.