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. 2019 Dec 11;93(4):830–838. doi: 10.3382/ps.2013-03511

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© 2014 Poultry Science Association Inc.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Kinetics. Nitric oxide release is shown as mean (μg/mL) ± SD by B2 and B19 macrophages at 24, 48, and 72 h poststimulation with poly (I:C); n = 8 (A) and interferon (IFN) γ; n = 6 (B). In the presence of either stimulant, NO production at all 3 time points was significantly lower in B19 than in B2 supernatants (P < 0.01, t-test, paired). Samples were taken at 6 wk of age. Color version available in the online PDF.