COVID-19 among healthcare workers in a specialist infectious diseases setting in Naples, Southern Italy: results of a cross-sectional surveillance study.

A coronavirus disease 2019 (COVID-19) surveillance study was performed in March-April 2020 among asymptomatic healthcare workers (HCWs) at a specialist infectious diseases hospital in Naples, Italy. All HCWs underwent two rounds of molecular and serological testing for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). One hundred and fifteen HCWs were tested; of these, two cases of infection were identified by reverse transcriptase polymerase chain reaction and two HCWs were SARS-CoV-2 immunoglobulin G seropositive. The overall prevalence of current or probable previous infection was 3.4%. The infection rate among HCWs was reasonably low. Most of the infected HCWs had been asymptomatic for the preceding 30 days, which supports the need for periodic screening of HCWs for COVID-19.

Endobronchial primary large B-cell Non-Hodgkin lymphoma in HIV-infected patient in the Highly Active Antiretroviral Therapy era: Description of a case report.

We report an unusual case of endobronchial primary large B-cell Non Hodgkin Lymphoma in a HIV-infected patient in the course of effective Highly Active Antiretroviral Therapy (HAART). Diagnosis of large B-cell NHL was obtained by fibreoptic bronchoscopy (FOB) biopsies. Three cycles of R-CHOP chemotherapy (rituximab, vincristine, cyclophosphamide, hydroxydaunorubicin, prednisone) was performed and clinical and radiological remission was obtained after 3 cycles of therapy.

Prevention of hepatitis B virus infection: from the past to the future.

About 3-5 % of the world's population is chronically infected by hepatitis B virus (HBV) and is at risk of developing liver cirrhosis or hepatocellular carcinoma. The risk of dying prematurely because of chronic HBV infection is higher in younger people. The current strategies to prevent HBV infection involve immunization (active and/or passive) and antiviral chemoprophylaxis. The vaccines available for active immunization, containing hepatitis B surface antigen, are safe and confer long-term immunity in most healthy subjects. Since the vaccination is unsatisfactory in some patients, e.g., those with chronic kidney disease, human immunodeficiency virus infection, type I diabetes mellitus, and celiac disease, new strategies of vaccination are required. The neonatal, infant, and adolescent routine program vaccination in about 180 countries has greatly decreased the disease burden. Passive immunization with specific HBV immunoglobulins is recommended after single acute exposure, in infants born to infected mothers, and in HBV-infected patients undergoing liver transplantation combined with nucleoside/nucleotide analogues (chemoprophylaxis). Chemoprophylaxis is also indicated in HBV carrier candidates for immunosuppressive treatment and in patients with occult B infection undergoing immunosuppressive therapy or hematopoietic stem cell transplantation. Since HBV is not eradicable by an immune response or by antiviral drugs developed so far, the only preventive strategy remains global neonatal vaccination in all countries, firstly in HBV-endemic countries.

Lenograstim in the treatment of severe neutropenia in patients treated with Peg-IFN and ribavirin: the experience of a single hepatology unit.

Lenograstim is a G-CSF that allows therapy with Peg-IFN-alpha to be continued in cases of haematotoxicity. This study evaluates the efficacy of lenograstim administration in a group of eight patients with chronic HCV-related hepatitis who developed neutropenia during antiviral treatment. Patients with absolute neutrophil counts less than 900 cells/mmc and early viral response received lenograstim at the dosage of 263 mcg 24 hours prior to administration of Peg-IFN alpha 2b. All patients receiving lenograstim completed the antiviral treatment (48 weeks) with standard doses of PEG-IFN alpha, with six of the eight patients (75%) showing a sustained virological response.