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An epidemic of severe acute respiratory syndrome (SARS) began in Foshan municipality, Guangdong Province, China, in November 2002. We studied SARS case reports through April 30, 2003, including data from case investigations and a case series analysis of index cases. A total of 1,454 clinically confirmed cases (and 55 deaths) occurred; the epidemic peak was(More)
6 13 14 Running Title: qnrS-containing plasmid pK245 in Klebsiella pneumoniae 15 16 17 ABSTRACT 1 A plasmid containing the qnrS quinolone resistance determinant and the gene encoding 2 SHV-2 β-lactamase has been discovered from a clinical Klebsiella pneumoniae strain isolated in 3 Taiwan. The complete 98-kb sequence of this plasmid, designated pK245, was(More)
BACKGROUND Microarray-based pooled DNA experiments that combine the merits of DNA pooling and gene chip technology constitute a pivotal advance in biotechnology. This new technique uses pooled DNA, thereby reducing costs associated with the typing of DNA from numerous individuals. Moreover, use of an oligonucleotide gene chip reduces costs related to(More)
A disease outbreak with dengue-like symptoms was reported in Guangdong Province, China, in October 2010. Testing results confirmed that the pathogen causing the outbreak was chikungunya virus. Phylogenic analysis indicated that this virus was a member of the Indian Ocean clade of the East/Center/South African subgroup of chikungunya virus.
Myasthenia gravis (MG) is an antibody and complement mediated autoimmune disease. Serum CXC chemokine ligand 13 (CXCL13) was found to be elevated in MG patients and high CXCL13 level was associated with severe clinical stages, especially in females with thymic lymphoid hyperplasia. Both protein and mRNA of CXCL13 and CXC chemokine receptor 5 (CXCR5) in the(More)
BACKGROUND Relying on surveillance of clinical cases limits the ability to understand the full impact and severity of an epidemic, which urges a deep insight into the serological evidence of infection and transmission feature of pandemic H1N1 2009 (pH1N1) virus in Guangdong province. METHODS In this cross-sectional serological survey, serum samples were(More)
BACKGROUND Copy number variations (CNVs) have recently been recognized as important structural variations in the human genome. CNVs can affect gene expression and thus may contribute to phenotypic differences. The copy number inferring tool (CNIT) is an effective hidden Markov model-based algorithm for estimating allele-specific copy number and predicting(More)
BACKGROUND Allele frequency is one of the most important population indices and has been broadly applied to genetic/genomic studies. Estimation of allele frequency using genotypes is convenient but may lose data information and be sensitive to genotyping errors. RESULTS This study utilizes a unified intensity-measuring approach to estimating(More)
BACKGROUND Genome-wide single-nucleotide polymorphism (SNP) arrays containing hundreds of thousands of SNPs from the human genome have proven useful for studying important human genome questions. Data quality of SNP arrays plays a key role in the accuracy and precision of downstream data analyses. However, good indices for assessing data quality of SNP(More)
BACKGROUND Colorectal cancer (CRC) is a major health concern worldwide, and recently becomes the most common cancer in Asia. The case collection of this study is one of the largest sets of CRC in Asia, and serves as representative data for investigating genomic differences between ethnic populations. We took comprehensive and high-resolution approaches to(More)