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PubMed1976

Enterovirus infections in neonates.

Twenty-seven ill neonates with enterovirus infections were studied to learn if enterovirus infection can be distinguished from neonatal sepsis. Enterovirus infection was associated with the summer-fall season (93%), recent maternal illness (59%), absence of other perinatal problems (81%), and findings of fever (93%), viral meningitis (62%), diarrhea (81%), and rash (41%). Four children developed thrombocytopenia and three necrotizing enterocolitis. Three children died, all with Coxsackie B virus infections that likely were acquired in utero. Although no single feature is pathognomonic, this constellation of epidemiologic and clinical findings, coupled with negative bacterial cultures, should suggest the possibility of neonatal enterovirus infection.

Bacterial Infections↗
PubMed2006

Neonatal enterovirus infections reported to the national enterovirus surveillance system in the United States, 1983-2003.

BACKGROUND: Neonatal enterovirus (EV) infections lead to a wide range of clinical manifestations, from mild febrile illness to severe, sometimes fatal, sepsislike disease. METHODS: To determine the relationship of EV serotypes with the risk of neonatal infection and its fatal outcome, we analyzed data reported to the National Enterovirus Surveillance System (NESS) during 1983-2003. RESULTS: Of the 26,737 EV detections reported during this period, neonates accounted for 2544 (11.4% of those with known age). Serotypes most commonly isolated from neonates included echovirus (E) 11 (14.0% of EV with known serotype), coxsackievirus (CV) B2 (8.9%), CVB5 (7.5%), E6, E9 and CVB4 (6.8% each). CVB1-4, E11, and E25 were significantly more common, whereas CVA16, E4, E9, E21, E30, and human parechovirus 1 (formerly E22) were less common among neonates than among persons aged > or =1 month. Fatal outcome was noted for 3.3% of reports, with neonates at a higher risk of death than persons aged > or =1 month (11.5% versus 2.5%; odds ratio [OR] 5.1; 95% confidence interval [CI] = 3.3-7.8). Neonates infected with CVB4 were at a higher risk of death (OR 6.5; 95% CI = 2.4-17.7) than those infected with other EV. CONCLUSION: EV are important neonatal pathogens associated with high risk of infection and death. Because of the limitations of the NESS (incomplete reporting, limited clinical data, bias towards more severe and younger cases), additional studies are needed to better evaluate the role of different EV in neonatal infections.

Age Factors↗
PubMed2001

Treatment of potentially life-threatening enterovirus infections with pleconaril.

Enteroviruses usually cause self-limited disease that, although associated with high morbidity, is rarely fatal. In certain patient populations, however, the enteroviruses may cause potentially life-threatening infections. Pleconaril is a novel compound that integrates into the capsid of picornaviruses, including enteroviruses and rhinoviruses, preventing the virus from attaching to cellular receptors and uncoating to release RNA into the cell. Pleconaril was used on a compassionate-release basis to treat patients with potentially life-threatening enterovirus infections, and for 38 of these patients sufficient follow-up data were available for determining responses to therapy. Response was evaluated in 4 categories: clinical, virological, laboratory, and radiological. Most patients (28 [78%] of 36), including 12 of 16 with chronic enterovirus meningoencephalitis, were judged to have a clinical response temporally associated with pleconaril therapy. Similarly, nearly all patients whose virological responses (12 [92%] of 13), laboratory responses (14 [88%] of 16), and radiological responses (3 [60%] of 5) could be evaluated were judged to have responded favorably to a course of pleconaril treatment. Adverse effects were minimal and the drug was generally well-tolerated.

Adolescent↗
PubMed2003

Enterovirus infections are associated with the induction of beta-cell autoimmunity in a prospective birth cohort study.

Enterovirus infections have been associated with the manifestation of clinical type 1 diabetes in a number of reports, and recent prospective studies have suggested that enterovirus infections may initiate the autoimmune process, leading to the disease. In the present study, we analyzed the role of enterovirus infections in a Finnish birth cohort study, Diabetes Prediction and Prevention (DIPP), in which all newborn infants are screened for diabetes-associated HLA-DQB1 alleles, and those with an increased genetic risk are invited for prospective follow-up. Enterovirus infections were diagnosed by serology and reverse transcriptase-polymerase chain reaction (RT-PCR) from serum samples taken from birth every 3-6 months. Case children included 41 infants who became positive for diabetes-associated autoantibodies during the observation. Control children comprised altogether 196 infants who remained autoantibody negative and were matched for the time of birth, sex, and HLA-DQB1 alleles. Enterovirus infections were more frequent in case children than in control children (P = 0.004), and the average enterovirus antibody levels were also higher in the case children (P = 0.003). Enterovirus infections were particularly frequent during the 6-month period preceding the first detection of autoantibodies: 51% of the case children compared with 28% of the control children had an infection in that time interval (P = 0.003). There was no difference in the frequency of adenovirus infections between the groups (P = 0.9). The present results imply that enterovirus infections are associated with the appearance of beta-cell autoantibodies. A possible causal relationship is supported by the clustering of infections to the time when autoantibodies appeared.

Adenoviridae Infections↗
PubMed1975

Surveillance of enterovirus infections in Bangkok. I. Isolation of enterovirus from faecal specimens of healthy children.

During the period August 1970 through July 1973, about 50 faecal specimens collected each month from healthy pre-school children of lower economic status in Bangkok were studied for virus isolation using primary monkey kidney cells and new born mice. From a total of 1,823 samples, 557 (30.5%) were positive: 86 (4.8%) polioviruses, 77 (4.2%) coxsackieviruses B, 223 (12.2%) echoviruses, and 127 strains (7.0%) of unidentified viruses. Altogether, 45 serotypes of enteric viruses were identified. More than 30 serotypes, including the 3 types of poliovirus, were present each year. Infection rates were higher in males than in females and highest at one year of age, the rates decreasing with progressing age. There was no marked seasonal variation of enterovirus infections in Bangkok. The poliovirus infection index was low from September to January, and the index of polio and non-polio enterovirus infections was highest in April.

Adenoviridae↗