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Published on: January 28, 2019
Characterisation of gastro-enteritis-associated adenoviruses in South Africa
P Moore1, A D Steele, G Lecatsas
1Department of Microbiology, University of the Witwatersrand, Johannesburg.
Objective:
To analyse adenovirus (Ad) numbers and types associated with paediatric gastro-enteritis in South Africa.
Setting:
Gauteng, 1994-1996.
Methods:
A total of 234 paediatric diarrhoeal stool samples were screened for Ad using commercial enzyme-linked immunosorbent assays (ELISAs). Adenoviral isolates were typed, where possible, using restriction enzyme analysis.
Results:
Ad was detected in 23 (9.8%) specimens, of which 8 (34.8%) were found by subgroup F-specific ELISA to contain Ad40 or 41. Six of these isolates were typed and 2 could not be typed. Of the remaining 15 specimens, 2 isolates had restriction profiles that did not correspond with known Ads, while 2 were identified as Ad31 and 1 as a subgroup C Ad. The remaining 10 specimens negative for Ad40/41 were non-cultivable and could not be typed.
Conclusions:
The high percentage of non-cultivable Ads other than Ad40/41 is unusual, and may possibly indicate the prevalence of hexon variants of Ad40/41 or of emerging Ad types in South Africa.
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