Virulence associated factors in bacteria from water bodies in Belém, Pará, Brazil: bacteriological composition and threat to public health oleh Lucas Monteiro da Trindade, Luiz Claudio Gomes Correa Filho, Denise Suellen Amorim de Sousa Santos, Nayara Rufino Sousa, Elivam Rodrigues Vale, Daniela Cristiane da Cruz Rocha, Lena Líllian Canto de Sá Morais