Brazilian meat plants helped spread Covid-19 in at least three different places across the country as the virus continues to migrate from big cities to the country’s vast interior, experts have said.The conditions can create perfect Covid-19 breeding centres, said Priscila Schvarcz, a prosecutor from the Public Ministry of Labour (MPT), a branch of the federal prosecution service charged with supervising labour laws.The company said that 98 of 2,873 workers at its plant in Lajeado, Rio Grande do Sul, tested positive in late May. JBS did not comment on China’s suspension of imports.At a JBS plant in Dourados, in Mato Grosso do Sul state in the centre-west region, more than 4,000 employees were tested and nearly a quarter were positive, prosecutors said. JBS said it had put all its indigenous workers on paid leave and is supporting initiatives to control and prevent new coronavirus outbreaks in more than 100 municipalities across Brazil. Labour prosecutors said JBS moved quickly to contain the outbreak. The company said workers in this situation are suspended on pay, given medical attention and monitored by occupational health specialists at the company until they recover.