Expression of bacterial virulence factors and cytokines during in vitro macrophage infection by enteroinvasive Escherichia coli and Shigella flexneri: a comparative study - Bando, Silvia Yume; Moreno, Ana Carolina Ramos; Albuquerque, José Antônio Tavares de; Amhaz, Juliana Mota Khalil; Moreira-Filho, Carlos Alberto; Martinez, Marina Baquerizo (Memórias do Instituto Oswaldo Cruz, 2010)