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J Clin Microbiol. 1994 February; 32(2): 285-291

Nested PCR for specific detection and rapid identification of human picornaviruses.

U Kämmerer, B Kunkel and K Korn

Medizinische Klinik II, Universität Erlangen-Nürnberg, Germany.

ABSTRACT

A nested PCR for the detection and rapid identification of human picornaviruses is described. Enteroviruses and rhinoviruses were amplified with the same set of four primers from the 5'-noncoding region. The nested primers allowed the detection of far less than 1 PFU in diluted virus stocks without Southern blot hybridization. In patients with neurological disorders (mainly aseptic meningitis), 43% of 37 specimens (11 of 21 cerebrospinal fluid specimens, 2 of 10 serum specimens, and 3 of 6 stool specimens) were positive by PCR. A total of 21% (10 of 47 specimens) of heart biopsy specimens from patients with dilative cardiomyopathy were PCR positive, whereas 3% (2 of 70 specimens) of control biopsy specimens from patients with coronary artery disease were PCR positive. PCR-amplified fragments from 27 of 29 clinical isolates and 14 of 28 patient samples were successfully serotyped by restriction enzyme digestion. Two specimens were further investigated by direct sequencing of PCR products, leading to the identification of a poliovirus type 3 isolate with a sequence that was highly divergent from previously published sequences.


J Clin Microbiol. 1994 February; 32(2): 285-291




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