PMID- 11818028 OWN - NLM STAT- MEDLINE DCOM- 20031120 LR - 20191027 IS - 1471-2431 (Electronic) IS - 1471-2431 (Linking) VI - 2 DP - 2002 TI - High incidence of Epstein-Barr virus, cytomegalovirus and human herpesvirus 6 infections in children with cancer. PG - 1 AB - BACKGROUND: A prospective single-center study was performed to study infection with lymphotropic herpesviruses (LH) Epstein-Barr virus (EBV), cytomegalovirus (CMV) and human herpesvirus 6 (HHV-6) in children with cancer. METHODS: The group of 186 children was examined for the presence of LH before, during and 2 months after the end of anticancer treatment. Serology of EBV and CMV was monitored in all children, serology of HHV-6 and DNA analysis of all three LH was monitored in 70 children. RESULTS: At the time of cancer diagnosis (pre-treatment), there was no difference between cancer patients and age-matched healthy controls in overall IgG seropositivity for EBV (68.8% vs. 72.0%; p = 0.47) and CMV (37.6% vs. 41.7%; p = 0.36). During anticancer therapy, primary or reactivated EBV and CMV infection was present in 65 (34.9%) and 66 (35.4%) of 186 patients, respectively, leading to increased overall post-treatment IgG seropositivity that was significantly different from controls for EBV (86.6% vs. 72.0%; p = 0.0004) and CMV (67.7% vs. 41.7%; p < 0.0001). Overall pre-treatment IgG seropositivity for HHV-6 was significantly lower in patients than in controls (80.6% vs. 91.3%; p = 0.0231) which may be in agreement with Greaves hypothesis of protective effect of common infections in infancy to cancer development. Primary or reactivated HHV-6 infection was present in 23 (32.9%) of 70 patients during anticancer therapy leading to post-treatment IgG seropositivity that was not significantly different from controls (94.3% vs. 91.3%; p = 0.58). The LH infection occurred independently from leukodepleted blood transfusions given. Combination of serology and DNA analysis in detection of symptomatic EBV or CMV infection was superior to serology alone. CONCLUSION: EBV, CMV and HHV-6 infections are frequently present during therapy of pediatric malignancy. FAU - Michalek, Jaroslav AU - Michalek J AD - Department of Pediatrics, Division of Hematology/Oncology, Masaryk University, Brno, Czech Republic. jaroslav.michalek@utsouthwestern.edu FAU - Horvath, Radek AU - Horvath R LA - eng PT - Journal Article DEP - 20020110 PL - England TA - BMC Pediatr JT - BMC pediatrics JID - 100967804 SB - IM MH - Adolescent MH - Case-Control Studies MH - Child MH - Child, Preschool MH - Comorbidity MH - Cytomegalovirus Infections/*epidemiology MH - Czech Republic/epidemiology MH - Epstein-Barr Virus Infections/*epidemiology MH - Female MH - Herpesviridae/*isolation & purification MH - Herpesvirus 4, Human/isolation & purification MH - Herpesvirus 6, Human/isolation & purification MH - Humans MH - Incidence MH - Infant MH - Logistic Models MH - Male MH - Neoplasms/*epidemiology MH - Prospective Studies MH - Roseolovirus Infections/*epidemiology PMC - PMC65040 EDAT- 2002/01/31 10:00 MHDA- 2003/12/03 05:00 PMCR- 2002/01/10 CRDT- 2002/01/31 10:00 PHST- 2001/08/04 00:00 [received] PHST- 2002/01/10 00:00 [accepted] PHST- 2002/01/31 10:00 [pubmed] PHST- 2003/12/03 05:00 [medline] PHST- 2002/01/31 10:00 [entrez] PHST- 2002/01/10 00:00 [pmc-release] AID - 1471-2431-2-1 [pii] AID - 10.1186/1471-2431-2-1 [doi] PST - ppublish SO - BMC Pediatr. 2002;2:1. doi: 10.1186/1471-2431-2-1. Epub 2002 Jan 10.