Jakarta, CNBC Indonesia – A study revealed that the Corona Covid-19 virus might have spread in Los Angeles (US) before the World Health Organization (WHO) learned of an unusual respiratory disease in Wuhan, China, which was later known as Covid-19.
This study was conducted by UCLA and the University of Washington by analyzing medical records from UCLA hospitals and clinics. They found an increase in patients with cough symptoms from December 22, 2019 to February 2020.
Some of these patients went on an outpatient basis, the rest came to the emergency room (ICU), and some ended up being treated at Ronald Reagan UCLA Medical Center or another UCLA-operated hospital.
The US Centers for Disease Control and Prevention (CDC) first declared the coronavirus detected in the US in mid-January 2020, when a man in Washington state who had just visited Wuhan tested positive for the infection.
According to the researchers in their study, it is possible that doctors at UCLA hospitals and clinics have treated dozens of Corona patients without knowing it.
The researchers did not perform any diagnostic tests, so they cannot say with certainty when doctors first encountered someone who was infected with the name SARS-CoV-2.
If it is true that Covid-19 had spread in Los Angeles before Christmas 2019, the pattern of patient visits to UCLA facilities would be very similar to what is happening today. The results of this study were published in the Journal of Medical Internet Research on Thursday (9/10/2020) local time.
“The significantly higher number of patients with complaints and respiratory illness starting late December 2019 and continuing through February 2020 indicates the spread of SARS-CoV-2 to the community before clinical awareness and testing capabilities were established,” wrote the researchers, led by Dr. Joann Elmore, who is an internist at UCLA, was quoted as saying by the Los Angeles Times, Saturday (12/09/2020).