id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-254094-ed1epul1	Mayoral, Eduardo Pérez-Campos	Factors related to asymptomatic or severe COVID-19 infection	2020-09-24		.txt	text/plain	1665	98	48	In particular, we refer to the TMPRSS2 expression profile, balance of androgen and estrogen, blood group-A and/or B, nonsynonymous mutations in ORF3, and proteins NS7b and NS8 in SARS-CoV-2. In the first months of the COVID-19 pandemic, most authors focused their attention on features such as the high expression of ACE2 in the salivary glands in asymptomatic infection [4] , and the maturity and binding capacity of ACE2 [5, 6] . A higher 2D:4D ratio is associated with COVID-19 severity in men [14] , this means that sex hormones play a role in protection, thus, causing women to develop less serious complications or an asymptomatic COVID-19 Infection [12] . An in-depth study of the factors associated with asymptomatic subjects can provide information to limit severe COVID-19 as much as possible. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is likely to be androgen mediated	./cache/cord-254094-ed1epul1.txt	./txt/cord-254094-ed1epul1.txt