Failure of the dog culling strategy in controlling human visceral leishmaniasis in Brazil: A screening coverage issue?

PLoS Negl Trop Dis · 2019 · PMC6615633 · PMID 31242193

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a decreasing trendno p-value reported

Another important question is why the positivity did not present a decreasing trend over the years, considering that every year thousands of dogs were serologically screened and positive ones culled.

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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.