Using mobile applications and websites for the diagnosis of COVID-19 in Spain Marina Guisado-Clavero; Sara Ares-Blanco; Lubna Dani Ben Abdellah;

Trend of pediatric leprosy in an endemic area in Northeast of Brazil, 2008¿2018 Maria Eugênia Farias Gama; Aline de Paula Caetano Pereira;

Population-based assessment of SARS-CoV-2 infection among people living with HIV and the general population of Catalonia (March¿December, 2020) Daniel K. Nomah; Yesika Díaz; Rosa M. Vivanco-Hidalgo; Jordi Casabona; Jose M. Miro; Juliana Reyes-Urueña;