Introduction and prolonged circulation of G12 rotaviruses in Sicily.

Genotype G12 strains are now considered to be the sixth most prevalent human rotaviruses worldwide. In two Sicilian cities, Palermo and Messina, surveillance of rotavirus circulation performed since 1985 and 2009, respectively, did not detect G12 strains until 2012. From 2012 to 2014 rotavirus infection was detected in 29·7% of 1647 stool samples collected from children admitted for acute gastroenteritis to three Sicilian hospitals in Palermo, Messina and Ragusa. In 2012, G12P[8] was first detected in Palermo and then in Messina where it represented the second most frequent genotype (20% prevalence) after G1P[8]. Thereafter, G12 strains continued to circulate in Sicily, showing a marked prevalence in Ragusa (27·8%) in 2013 and in Palermo (21%) and Messina (16·6%) in 2014. All but one of the Sicilian G12 strains carried a P[8] VP4 genotype, whereas the single non-P[8] rotavirus strain was genotyped as G12P[9]. Phylogenetic analysis of the VP7 and VP4 sequences allowed distinction of several genetic lineages and separation of the G12P[8] strains into three cluster combinations. These findings indicate independent introductions of G12 rotavirus strains in Sicily in recent years.

Post-vaccine measles in a child with concomitant influenza, Sicily, Italy, March 2015.

We describe the occurrence of measles in an 18 month-old patient in Sicily, Italy, in March 2015, who received the first dose of a measles-containing vaccine seven days before onset of prodromal symptoms. Measles virus infection was confirmed by PCR and detection of specific immunoglobulin; viral genotyping permitted the confirmation of a vaccine-associated illness. The patient had a concurrent influenza virus infection, during a seasonal epidemic outbreak of influenza.

[Renal abscess in childhood: a case report]. / Ascesso renalein età pediatrica:descrizione di un caso.

We describe the case of a previously healthy six-year-old boy with a right renal abscess due to a methicillin-resistant Staphylococcus aureus, which necessitated a radical nephrectomy. Although renal ultrasonography is often the initial tool to identify fluid collection, in our case the diagnosis was obtained only after performing an abdominal CT with intravenous contrast. It is therefore necessary to combine these different imaging techniques in all children with fever and abdominal/lumbar pain without any apparent cause in order to obtain an early diagnosis and minimise organ damage.

[Thrombocytopenia associated with brucellosis: a case report]. / Trombocitopenia in corso di brucellosi: descrizione di un caso.

Brucellosis, a common disease in some areas of the world, beside its typical signs and symptoms, as fever, arthropathy, hepatomegaly and splenomegaly, sometimes can complicate into thrombocytopenia, even in severe forms. The pathogenesis of thrombocytopenia in course of brucellosis is variable, and a main role is played by immunological reactions. Authors describe a case report of an eight years child who presented a severe thrombocytopenia in course of acute brucellosis. The patient responded efficaciously to the antibiotic therapy combined with immunoglobulin intravenous therapy.

Clinical and laboratory findings of boutonneuse fever in Sicilian children.

UNLABELLED: The spectrum of signs and symptoms of 645 consecutive children diagnosed from 1984 to 1996 with boutonneuse fever (BF), a mild rickettsial disease caused by Rickettsia conorii endemic in the Mediterranean basin, are reported. The major clinical features were fever (97.2%), exanthema (96.1%) and "tache noire" (71.8%). The large series examined permitted the authors to observe some rare or disregarded clinical features of the disease: cases with papulovesicular exanthema, reported previously only in adults who had been infected by R. conorii in Africa; and cases in which the only symptom was an isolated lymphadenopathy. CONCLUSION: R. conorii infection should be considered in patients with lymphadenopathy who live in or have travelled to an endemic area, even when other, more specific features, are not present. Also pox-like vesicular lesions may be caused by this organism, awaiting confirmation by using culture techniques instead of serology. The serological confirmation of BF by immuno fluorescent antibody test is possible only late in the illness.