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Virol J. 2013 Jun 13;10:193. doi: 10.1186/1743-422X-10-193.

Molecular characterization of human adenovirus infection in Thailand, 2009-2012.

Abstract

BACKGROUND:

Human adenovirus (HAdV) can cause a wide spectrum of human diseases worldwide.

METHODS:

Using PCR and sequence analysis, we investigated HAdV infection prevalence in the Thai population for four years from January 2009 to December 2012. We collected Nasopharyngeal swab/aspirate (NP) specimens from patients in Bangkok, Khon Kaen, and Nakhon Si Thammarat province and fecal specimens only from Bangkok and Khon Kaen province.

RESULTS:

We observed HAdV infection in 1.04% (82/7,921) of NP samples and in 5.84% (76/1,301) of fecal specimens. HAdV-B3 (32%) and HAdV-C1 (31%) were the genotypes most commonly associated with NP specimens followed by HAdV-C2 (13%) and HAdV-C5 (12%). In fecal specimens, we found that 25% harbored HAdV-F41 followed by HAdV-C1 (18%), HAdV-C2 (16%), and HAdV-B3 (13%). Out of all population subsets, children below the age of 3 years were the most likely to be HAdV positive (63.29%). In addition, HAdV infection occurred throughout the year without a seasonal distribution pattern, although HAdV infection of NP samples peaked from January-April while HAdV infection peaked from January to March and then again from May to July in fecal samples.

CONCLUSIONS:

This study has for the first time reported the HAdV infection rate in Thai NP and fecal specimens from 2009-2012. We observed that HAdV-B3 and HAdV-C1 were commonly found in NP specimens, and that HAdV-F41 was the most prevalence in fecal specimens in Thailand during the study period.

PMID:
23758792
PMCID:
PMC3693972
DOI:
10.1186/1743-422X-10-193
[Indexed for MEDLINE]
Free PMC Article

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