[Seasonal pattern and phylogenetic analysis with human isolates of genotype-IV hepatitis E virus in swine herds, eastern China].

Objective: To determine the seasonal prevalence of genotype-IV hepatitis E virus (HEV) in swine herds in Eastern China and explore the phylogenetic relationship between swine HEV and human HEV in the situation that zoonotic features of HEV had been confirmed.

Methods: From September 2007 to June 2008, a total of 1200 swine bile specimens were collected from three slaughter houses located in Zhejiang, Anhui and Jiangsu, the Eastern China, and detected for HEV RNA by using nested RT-PCR. The positive PCR products were sequenced.

[Low back pain prevalence of female workers in flat-grained veneer wood industry].

Objective: To study the low back pain(LBP) and its cause on female workers in flat-grained veneer wood industry.

Methods: Bending posture was analyzed by observation and the prevalence of low back pain was investigated by physical examination and questionnaire among 299 female workers.

Results: The prevalence of fatigue compliant in selecting, remending and sticking workers was 68.

[A cost-effectiveness study on a case-finding program of tuberculosis through screening those suspects with chronic cough symptoms in the rich rural areas].

Objective: To study the feasibility and cost-effectiveness of a case-finding program on tuberculosis (TB) in richer rural areas.

Methods: Screening was implemented every three months for a total period of 9 months, in rural areas with high case notification rates. Three villages, each with ten thousand population, were selected to carry out a household screening program.

[Detection and analysis of partial sequences isolated from human and swine in rural area of southern China].

Objective: To study the genotype of swines isolated from humans and their relationships with hepatitis E virus (HEV) in the rural areas of southern China.

Methods: Specimens collected from normal people with HEV-IgM positive, acute hepatitis E patients and from swine in the same area were detected for HEV RNA using RT-nPCR with ORF2 primers. The positive PCR products were cloned and sequenced.