COOVID-19: What have we learned since the beginning of the epidemic until today?

In late December 2019, in the city of Wuhan, China, appearance unknown viral pneumonia was recorded a large number patients. The cause this infection soon discovered - new coronavirus, called SARS-CoV-2, due to its genetic similarity virus that causes severe acute respiratory syndrome (SARS-CoV). then spread rapidly other continents, and pandemic is still ongoing. clinical presentation varies from asymptomatic form symptoms upper tract infection, finally distress (ARDS). elderly, immunocompromised patients, patients suffering chronic, internal medicine diseases are at risk COVID-19 disease. enters cells via angiotensin converting enzyme 2 (ACE2) receptors, which present practically all tissues body. addition interstitial pneumonia, pathological changes also found organ systems. first case Serbia on March 6, 2020. A required engagement health workers profiles as well introduction institutions into COVID system. emergence necessitated antiviral drug. Based previous experience with SARS-CoV virus, previously known drugs have been used, varying degrees success. therapy changed accordance knowledge, since beginning epidemic Serbia, National Protocol Republic for Treatment Infection has established, kept apace recommendations world's leading institutions. most significant event during development vaccine against COVID-19, vaccination How quickly will end depends directly speed efficiency vaccination, along epidemiological measures.