MOSCOW, March 31 (Xinhua) -- The chief doctor of Russia's major coronavirus treatment hospital in the outskirts of Moscow, who recently met President Vladimir Putin, has tested positive for COVID-19. "Yes, I have a positive CoV test, but I feel quite good," Denis Protsenko, the doctor,...
Besides, both ResNet10 and ResNet34 get high sensitivity but extremely low specificity in COVID-19 diagnosis, which indicates that they tend to make more false positive predictions of COVID-19. In contrast, our ResNet18 model achieves a better comprehensive performance on AUC for COVID-19. ...
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 ...
Fig. 1. Examples of CT images that are: positive for COVID-19 (top) and non-COVID-19 (bottom) from SARS-CoV-2 CT-scan dataset. This dataset also lacks standardization regarding the contrast of the images, as can be seen in Fig. 2. Download: Download high-res image (382KB) Downloa...
I am worried about the off chance one of us may test positive and not be able to return home. If we do continue with our plans, we should be able to test in Nosara (we would be coming from Samara) and then head to Monteverde for two days before flying out of San Jose. I guess...
positive test with a test-negative case–control (TNCC) design15. This has yielded estimates of the effectiveness of over 90% against Alpha and Delta variants. However, given that all individuals who are hospitalised for any reason in the UK are tested for COVID-19, and with the lower ...
As far as the virus’s structural integrity goes, it is a simple-stranded RNA, positive-sense, enclosed virus. It is also one of those viruses of the coronavirus family that affects humans out of the seven strains. Its host-entering mechanism involves binding with the N-acetyl-9-O-acetyl...
The crude prevalence of persistent physical symptoms was first calculated for 4 groups of participants according to both belief (i.e., self-reported COVID-19 infection) and serology test results: belief negative and serology negative; belief positive and serology negative; belief negative and serolog...
Consistent with Feng et al.22, we document a positive relation between a country’s GDP per capita and the severity of COVID-19, suggesting that the pandemic results in more confirmed cases and deaths in developed countries than in developing countries. This result seems counter-intuitive, as ...
Note. CAS = coronavirus anxiety scale, OCS = obsession with COVID-19 scale. a Chi-square difference testing (Δχ2) is carried out using scaling correction factor for MLR As presented in Table 3, the concurrent validity of CAS was supported by its significant, positive association with negati...