Iterative Excretion of Human Cosaviruses from Different Genotypes Associated with Combined Immunodeficiency Disorder.
Intervirology
; 61(5): 247-254, 2018.
Article
em En
| MEDLINE
| ID: mdl-30726837
ABSTRACT
BACKGROUND:
Human cosaviruses (HCoSVs) are newly discovered enteric viruses in the Picornaviridae family. They have been described in non-polio acute flaccid paralysis, diarrheal patients, and healthy individuals. They remain rarely documented in immunodeficient patients.OBJECTIVES:
This study reports iterative excretion of HCoSVs in a patient with major histocompatibility complex (MHC) class II combined immunodeficiency, a relatively common primary immunodeficiency in consanguineous settings.METHODS:
A total of 35 samples were collected from a patient followed for oral polio vaccine strains detection in stool samples during a 57-month period. Detection of HCoSVs in stools was performed by nested RT-PCR in the 5' noncoding region. The genotype identification and screening for recombinant strains was performed by sequencing in the VP1 and 3D genomic regions followed by phylogenetic analysis.RESULTS:
The patient was infected with HCoSVs twice at a 3-year interval. The excreted viruses belonged to 2 different genotypes with 2 probable recombinant viruses. During HCoSV infections, the patient was also excreting Sabin-related polioviruses.CONCLUSIONS:
This study describes excretion kinetics and genetic characteristics of HCoSVs in a patient with combined immunodeficiency due to MHC class II expression defect. The patient did not have concomitant symptoms related to the HCoSV infection.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Picornaviridae
/
Imunodeficiência Combinada Severa
/
Infecções por Picornaviridae
/
Genótipo
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child, preschool
/
Humans
/
Male
Idioma:
En
Revista:
Intervirology
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Tunísia