Retrospective serological survey of influenza viruses in backyard pigs from Mexico City.

Influenza Other Respir Viruses · 2013 · PMC5781217 · PMID 23210521

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a decreasing trendno p-value reported

A similar pattern was observed for the swH1N1and swH3N2 viruses, for which the highest titers were obtained in the first year(s) followed by a decreasing trend over time.

also in 47,180 other papers

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.