@article {10502, title = {Imported arboviral infections in Italy, July 2014-October 2015: a National Reference Laboratory report.}, journal = {BMC Infect Dis}, volume = {17}, year = {2017}, month = {2017 03 16}, pages = {216}, abstract = {

BACKGROUND: Imported cases of infections due to Dengue (DENV) and Chikungunya (CHIKV) viruses and, more recently, Zika virus (ZIKV) are commonly reported among travelers returning from endemic regions. In areas where potentially competent vectors are present, the risk of autochthonous transmission of these vector-borne pathogens is relatively high. Laboratory surveillance is crucial to rapidly detect imported cases in order to reduce the risk of transmission. This study describes the laboratory activity performed by the National Reference Laboratory for Arboviruses (NRLA) at the Italian National Institute of Health in the period from July 2014 to October 2015.

METHODS: Samples from 180 patients visited/hospitalized with a suspected DENV/CHIKV/ZIKV infection were sent to the NRLA from several Italian Hospitals and from Regional Reference Laboratories for Arboviruses, in agreement with the National Plan on human surveillance of vector-borne diseases. Both serological (ELISA IgM test and Plaque Reduction Neutralization Test-PRNT) and molecular assays (Real Time PCR tests, RT-PCR plus nested PCR and sequencing of positive samples) were performed.

RESULTS: DENV infection was the most frequently diagnosed (80 confirmed/probable cases), and all four genotypes were detected. However, an increase in imported CHIKV cases (41 confirmed/probable cases) was observed, along with the detection of the first ZIKV cases (4 confirmed cases), as a consequence of the recent spread of both CHIKV and ZIKV in the Americas.

CONCLUSIONS: Main diagnostic issues highlighted in our study are sensitivity limitations of molecular tests, and the importance of PRNT to confirm serological results for differential diagnosis of Arboviruses. The continuous evaluation of diagnostic strategy, and the implementation of laboratories networks involved in surveillance activities is essential to ensure correct diagnosis, and to improve the preparedness for a rapid and proper identification of viral threats.

}, keywords = {Chikungunya Fever, Chikungunya virus, Dengue, Dengue Virus, Disease Outbreaks, Female, Genotype, Humans, Italy, Male, Molecular Diagnostic Techniques, Population Surveillance, Public Health, Travel, Young Adult, Zika Virus, Zika Virus Infection}, issn = {1471-2334}, doi = {10.1186/s12879-017-2320-1}, author = {Fortuna, Claudia and Remoli, Maria Elena and Rizzo, Caterina and Benedetti, Eleonora and Fiorentini, Cristiano and Bella, Antonino and Argentini, Claudio and Farchi, Francesca and Castilletti, Concetta and Capobianchi, Maria Rosaria and Zammarchi, Lorenzo and Bartoloni, Alessandro and Zanchetta, Nadia and Gismondo, Maria Rita and Nelli, Luca Ceccherini and Vitale, Giustina and Baldelli, Franco and D{\textquoteright}Agaro, Pierlanfranco and Sodano, Giuseppe and Rezza, Giovanni and Venturi, Giulietta} } @article {1986, title = {High prevalence of serum antibodies reacting with simian virus 40 capsid protein mimotopes in patients affected by malignant pleural mesothelioma.}, journal = {Proc Natl Acad Sci U S A}, volume = {109}, year = {2012}, month = {2012 Oct 30}, pages = {18066-71}, abstract = {

Human malignant pleural mesothelioma (MPM) is considered a rare tumor, but recent estimations indicate that one-quarter million people will die of this neoplasm in Europe in the next three decades. The mineral asbestos is considered the main causative agent of this neoplasm. MPM is largely unresponsive to conventional chemotherapy/radiotherapy. In addition to asbestos exposure, genetic predisposition to asbestos carcinogenesis and to simian virus (SV)40 infection has also been suggested. SV40 is a DNA tumor virus found in some studies to be associated at high prevalence with MPM. SV40 sequences have also been detected, although at a lower prevalence than in MPM, in blood specimens from healthy donors. However, some studies have failed to reveal SV40 footprints in MPM and its association with this neoplasm. These conflicting results indicate the need for further investigations with new approaches. We report on the presence of antibodies in serum samples from patients affected by MPM that specifically react with two different SV40 mimotopes. The two SV40 peptides used in indirect ELISAs correspond to viral capsid proteins. ELISA with the two SV40 mimotopes gave overlapping results. Our data indicate that in serum samples from MPM-affected patients (n = 97), the prevalence of antibodies against SV40 viral capsid protein antigens is significantly higher (26\%, P = 0.043) than in the control group (15\%) represented by healthy subjects (n = 168) with the same median age (66 y) and sex. Our results suggest that SV40 is associated with a subset of MPM and circulates in humans.

}, keywords = {Amino Acid Sequence, Antibodies, Viral, Capsid Proteins, Enzyme-Linked Immunosorbent Assay, Female, Humans, Male, Mesothelioma, Molecular Sequence Data, Pleural Neoplasms, Pregnancy, Simian virus 40}, issn = {1091-6490}, doi = {10.1073/pnas.1213238109}, author = {Mazzoni, Elisa and Corallini, Alfredo and Cristaudo, Alfonso and Taronna, Angelo and Tassi, Gianfranco and Manfrini, Marco and Comar, Manola and Bovenzi, Massimo and Guaschino, Roberto and Vaniglia, Francesca and Magnani, Corrado and Casali, Ferruccio and Rezza, Giovanni and Barbanti-Brodano, Giuseppe and Martini, Fernanda and Tognon, Mauro G} } @article {1691, title = {Transmission of hemagglutinin D222G mutant strain of pandemic (H1N1) 2009 virus.}, journal = {Emerg Infect Dis}, volume = {16}, year = {2010}, month = {2010 May}, pages = {863-5}, abstract = {

A pandemic (H1N1) 2009 virus strain carrying the D222G mutation was identified in a severely ill man and was transmitted to a household contact. Only mild illness developed in the contact, despite his obesity and diabetes. The isolated virus reacted fully with an antiserum against the pandemic vaccine strain.

}, keywords = {Adult, Amino Acid Substitution, Disease Outbreaks, Hemagglutinin Glycoproteins, Influenza Virus, Humans, Influenza A Virus, H1N1 Subtype, Influenza, Human, Male, Middle Aged, Mutation, Missense, Phylogeny, Retrospective Studies, RNA, Viral, Sequence Analysis, RNA, Severity of Illness Index}, issn = {1080-6059}, doi = {10.3201/eid1605.091815}, author = {Puzelli, Simona and Facchini, Marzia and Spagnolo, Domenico and De Marco, Maria A and Calzoletti, Laura and Zanetti, Alessandro and Fumagalli, Roberto and Tanzi, Maria L and Cassone, Antonio and Rezza, Giovanni and Donatelli, Isabella} }