Vaccine-Derived Polioviruses and Children with Primary Immunodeficiency, Iran, 1995-2014.
Emerg Infect Dis
; 22(10): 1712-9, 2016 10.
Article
in En
| MEDLINE
| ID: mdl-27648512
ABSTRACT
Widespread use of oral poliovirus vaccine has led to an ≈99.9% decrease in global incidence of poliomyelitis (from ≈350,000 cases in 1988 to 74 cases in 2015) and eradication of wild-type poliovirus serotypes 2 and 3. However, patients with primary immunodeficiency might shed vaccine-derived polioviruses (VDPVs) for an extended period, which could pose a major threat to polio eradication programs. Since 1995, sixteen VDPV populations have been isolated from 14 patients with immunodeficiency in Iran. For these patients, vaccine-associated paralysis, mostly in >1 extremity, was the first manifestation of primary immunodeficiency. Seven patients with humoral immunodeficiency cleared VDPV infection more frequently than did 6 patients with combined immunodeficiencies. Our results raise questions about manifestations of VDPVs in immunodeficient patients and the role of cellular immunity against enterovirus infections. On the basis of an association between VDPVs and immunodeficiency, we advocate screening of patients with primary immunodeficiency for shedding of polioviruses.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Poliomyelitis
/
Poliovirus Vaccine, Inactivated
/
Poliovirus Vaccine, Oral
/
Virus Shedding
/
Poliovirus
/
Immunologic Deficiency Syndromes
Type of study:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Adult
/
Child
/
Female
/
Humans
/
Male
Country/Region as subject:
Asia
Language:
En
Journal:
Emerg Infect Dis
Journal subject:
DOENCAS TRANSMISSIVEIS
Year:
2016
Type:
Article