Background: Human herpesvirus (HHV)-7 is usually associated with febrile seizures. Later onset and higher frequency of seizures are characteristic of pediatric HHV-7, compared with HHV-6 infection. The HHV-7-related severe neurological disorders are predominantly observed in immunocompromised individuals. Reports of healthy individuals with HHV-7 infection and diverse neurological disorders are limited. Patient Description: We present a case of HHV-7-related epilepsy in an immunocompetent 11-year old boy and extensive infectious and autoimmune testing positive only for HHV-7 in the cerebrospinal fluid. The patient made a good recovery after treatment with intravenous immunoglobulin and methylprednisolone. Discussion: This is the first reported case of epilepsy associated with HHV-7 in a previously healthy individual. It also demonstrates that intravenous immunoglobulin and steroids may be used in the course of this disorder and may be beneficial for recovery.
Contacts 1. The increase in the incidence of Lyme Borreliosis (LB)in Belarus in 2017 -1,548 cases, among children-99 cases. 2. Difficulties of early and late clinical diagnosis. 3. Difficulties of early laboratory verification of the diagnosis (diagnostic titer of anti-Borreliaantibody becomes positive not earlier than 14 days from the moment of tick bite). 4. Late or non antibacterial prevention of LB leads to a long course of the infectious process and even the development of health disability (according to a number of authors, at least 10% of sick child population) 5. The prognosis for all stages of LB is different depending on adequate antibacterial therapy.
It is a common practice for an allergist to conduct differentiated diagnosis of allergic rash and that caused by an infectious disease. Diagnostic value of rash during infectious diseases is not straightforward. It is particularly difficult to conduct differentiated diagnosis of allergic and infection -induced rash in a situation of ambiguous clinical evidence of a virus infection.
Objective: To evaluate the frequency of reactivation of HHV-6 infection in patients after allogeneic hematopoietic stem cell transplantation (allo-HSCT); determine viral load in serum/plasma and associated clinical manifestations; to determine the criteria for initiating anti-viral prophylaxis and etiotropic therapy in patients with this infection in the Republic of Belarus. Methods: Monitoring of polymerase chain reaction (PCR) of blood serum in 42 patients after allo-HSCT. Results: In 31% of patients, HHV-6 DNA was detected in serum/plasma on 14-28 days after allo-HSCT. The concentration of HHV-6 DNA in blood serum was up to 2.3-6.5×103 copies/ml, in 3 patients (18.8%) with the concentration of DNA≥2.3×103 copies/ml, developed clinical manifestations in the form of hepatitis. Regular monitoring of HHV-6 infection revealed reactivation of the infection and, with a viral load of≥100 copies/ml, initiate timely preventive treatment with ganciclovir. Conclusions: HHV-6 DNA is detected in one-third of patients after allo-HSCT and in the form of hepatitis. Timely prevention and therapy with ganciclovir reduce the risk of severe complications and fatal outcomes. Keywords: Children, HHV-6, hematology, stem cells transplantation, hepatitis.
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