Evaluation of the Activity of Influenza and Influenza-like Viruses in the Epidemic Season 2013/2014 -- Necrotizing Pneumonia and its Complications in Children -- Progress in the Diagnosis and Control of Ebola Disease -- Pathophysiology of Clinical Symptoms in Acute Viral Respiratory Tract Infections -- Stagnating Low Influenza Vaccine Coverage Rates in the Polish Elderly Population in 2008-2013 -- Incidence of Circulating Antibodies against Hemagglutinin of Influenza Viruses in the Epidemic Season 2013/2014 in Poland -- Neutrophils - the role of oxidative and nitrosative stress in health and disease -- The Incidence of Respiratory Tract Infections in Vertically HIV-Infected Children in Lower Silesia in Poland and the Approach to Infection Prevention -- Implementation of Hospital Antibiotic Policy Decreases Antimicrobial Use in the Pediatric Ward -- Detection of Chlamydophila Pneumoniae and Typical Bacteria in Patients with Chronic Cough -- Compliance with Vaccination Against InfluenzaAmong the Elderly.