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Although the use of the lexical approach in enhancing English learners’ oral communication performance has gained much attention in the TESOL world, it is still a neglected area in Vietnam. The present study is conducted in order to address this issue. On the basis of the theories presented, a teaching experiment was conducted at Nguyen Hue University from September 15 to December 14, 2012. The results show that not only the students’ English oral communication performance was improved significantly, but also their attitudes were shown positively. Recommendations are made for teachers of English who are interested in using the approach to enhance learners’ oral communication performance.

To evaluate risk factors for human infection with influenza A subtype H5N1, we performed a matched case-control study in Vietnam. We enrolled 28 case-patients who had laboratory-confirmed H5N1 infection during 2004 and 106 age-, sex-, and location-matched control-respondents. Data were analyzed by matched-pair analysis and multivariate conditional logistic regression. Factors that were independently associated with H5N1 infection were preparing sick or dead poultry for consumption