On July 20th, The Lancet published two papers online at the same time, revealing the results of clinical trials for two COVID-19 vaccines. From China and the United Kingdom respectively, the two stars on the track of adenovirus vector vaccine display a one-on-one competition. What are the...
We excluded individuals with one or more positive tests in the period 31 to 180 days after the first positive test. In this way, we could exclude new onset symptoms that were due to a new SARS-CoV-2 infection and not related to the first SARS-CoV-2 infection (i.e., all positive tes...
◆ When Wuhan was shut down on 23 January, only one case was publicly confirmed in the US. When the US closed its borders on 2 February to all Chinese citizens and foreigners who had been to China within the previous 14 days, there were only eight confirmed cases in the US according to...
supermarkets, entertainment venues, delivery, agricultural products wholesale markets, wet markets, construction sites, domestic services, hygiene and catering businesses, will still be subject to compulsory one COVID test every ...
Probable deaths are deaths where Covid-19 is listed on the death certificate as the cause of death or a significant contributing condition, but where there has been no positive confirmatory laboratory test. Deaths among probable cases tracked by a state or local health department where a death ...
We then asked them to diagnose each CT from the test split into one of the four classes. We reported the performance of each single radiologist and the majority votes on the COVID-19 versus non-COVID-19 CTs in Fig. 4 (detailed comparisons are presented in Supplementary Table 5 and 9)....
Patients who test negative for COVID-19 using a sample taken while they were symptomatic likely do not have the disease [6]. However, the sensitivity of RT-PCR has been reported to range from 66% to 80% [77]. A single negative RT-PCR should not be used to exclude the diagnosis, ...
"Great!" said Zhong, expressing his willingness to continue working at the front line of combating respiratory diseases and handling public health emergencies. Zhong was one of those who had been awarded by Xi in person the Medal of the Republic or the title of the People's Hero for renderin...
With the assistance from the mainland medical team, the waiting time for taking the test has been significantly reduced. "Now we only have to line up for less than 30 minutes instead of a few hours, and will receive test results the day after," Lam told Xinhua. ...
Reverse Transcription-Polymerase Chain Reaction (RT-PCR) is the gold-standard test for the diagnosis of COVID-19. However, the RT-PCR test suffers from high false-negative rates and delayed results. Medical imaging, particularly Computed Tomography (CT) scans, has been recommended by the World ...