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The objective of this paper is to perform a meta‐analysis regarding the chest computed tomography (CT) manifestations of coronavirus disease‐2019 (COVID‐19) pneumonia patients. PubMed, Embase, and Cochrane Library databases were searched from 1 December 2019 to 1 May 2020 using the keywords of “COVID‐19 virus,” “the 2019 novel coronavirus,” “novel coronavirus,” and “COVID‐19.” Studies that evaluated...
Background Exposure to ambient ozone (O3) increases the susceptivity to allergens and triggers exacerbations in patients with asthma. However, the detailed mechanisms of action for O3 to trigger asthma exacerbations are still unclear. Methods An ovalbumin (OVA)-established asthmatic mouse model was selected to expose to filtered air (OVA-model) or 1.0 ppm O3 (OVA-O3 model) during the process of...
The protective effect of revaccination with Mycobacterium bovis Bacillus Calmette–Guérin (BCG) against Mycobacterium tuberculosis in animals is controversial. To investigate whether revaccination of neonates with BCG could improve the protection against M. tuberculosis, C57BL/6 neonates were vaccinated with BCG on day 1, or on days 1, 7, and 14, and the mice at eight weeks of age were challenged with...
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