Barbara Camilloni

1. Introduction Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the agent responsible for causing Coronavirus Disease 2019 (COVID-19), has caused millions of infection cases and more than 6 million deaths worldwide from December 2019 to now [].

1. Introduction Pneumococcal disease (PD) is an infectious disease caused by streptococcus pneumoniae (Spn). According to the infection sites, PD can be divided into invasive pneumococcal disease (IPD) and non-invasive pneumococcal diseases (NIPD). Studies have shown that Spn can cause different types of infections, mainly IPD including meningitis, bacteremia and bacteremic pneumonia (1, 2).

1. Introduction The COVID-19 pandemic in Slovakia is part of the global pandemic of the disease COVID-19 caused by the SARS-CoV-2 virus. The first case was confirmed in Slovakia on March 6, 2020 (1). The first measures against the pandemic were also adopted on March 6, 2020 (2). A state of emergency was first declared on March 12, 2020 (3). The state of the pandemic continues worldwide to this day (4).