Estrogen mediates innate and adaptive immune alterations to influenza infection in pregnant mice.

PLoS One · 2012 · PMC3390370 · PMID 22792357

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a strong trendno p-value reported

Indeed, we saw a strong trend towards elevated levels of the chemokine KC in the steady state of pregnancy, followed by significant deficit in KC expression upon infection.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.