Seroprevalence and indexes of IgG antibodies for SARS-CoV-2 infection among People Living With HIV, tuberculosis patients and healthcare workers, in Salvador, Brazil Daniele Souza de Santana; Eduardo Martins Netto; Sara Nunes Vaz; Paulo Henrique Dantas; Carlos Brites;

Seroprevalence of Listeria monocytogenes in HIV infected pregnant women from Brazil Isabelle Geoffroy Ribeiro Freitag; Rodrigo de Castro Lisbôa Pereira; Elizabeth S Machado; Ernesto Hofer; Deyse Christina Vallim; Cristina Barroso Hofer;