Erythema nodosum as first clinical sign of acute Borrelia burgdorferi infection Simona Kordeva; Lyudmil Ivanov; Valentina Broshtilova; Georgi Tchernev;

High prevalence of 19A pneumococcal serotype carriage during the COVID-19 pandemic in Brazil Muriel Primon-Barros; Fernanda Hammes Varela; Márcia Polese-Bonatto; Ivaine Tais Sauthier Sartor; Thais Raupp Azevedo; Caroline Nespolo de David; Maiko Luis Tonini; Renato T. Stein; Marcelo Comerlato Scotta; Cícero Armídio Gomes Dias;

Seroprevalence of anti-SARS-CoV-2 in patients with hepatitis B and C: a pre-vaccination study Lucas Lima da Silva; Lia Laura Lewis-Ximenez; Mônica de Avelar Figueiredo Mafra Magalhães; Vanessa Salete de Paula; Livia Melo Villar;