Note on correction: the headline has been corrected. Four of nine plants tested positive.
Researchers have estimated the prevalence of Listeria monocytogenes in beef from the Brazilian state of Mato Grosso, which is the largest producer and exporter of beef in the country.
From 50 samples analyzed, Listeria spp. was
Continue Reading Study finds 4 of 13 beef plants sampled in Brazil were contaminated with Listeria