Lorraine F. Yeung

Learn More
OBJECTIVES We investigated a measles outbreak that began in March 2003 in a Pennsylvania boarding school with >600 students to identify all cases, including the source; implement outbreak control measures; and evaluate vaccine effectiveness. METHODS Measles was suspected in any person at the school with a generalized rash and fever during March 21 to May(More)
OBJECTIVES This study assessed and compared the prevalence and severity of dental caries and the prevalence of periodontal disease among pregnant and nonpregnant women of reproductive age (15-44 years) using data from the National Health and Nutrition Examination Survey, NHANES (1999-2004). METHODS Estimates were derived from a sample of 897 pregnant(More)
OBJECTIVE To report the prevalence of anaemia by demographic characteristics and its secular trend over 13 years for south-east Chinese pregnant women, and to determine the focus of anaemia prevention in Chinese pregnant women. DESIGN Prospective study of the data on Hb concentration and other demographic information from a large-scale population-based(More)
BACKGROUND US children consume folic acid from multiple sources. These sources may contribute differently to usual intakes above the age-specific tolerable upper intake level (UL) for folic acid and to folate and vitamin B-12 status. OBJECTIVE We estimated usual daily folic acid intakes above the UL and adjusted serum and red blood cell folate, serum(More)
We describe the efforts of the Maternal Health Team, which was formed to address the needs of pregnant and breastfeeding women during the Centers for Disease Control and Prevention's (CDC's) 2009 pandemic influenza A (2009 H1N1) emergency response. We examined the team's activities, constructed a timeline of key pandemic events, and analyzed the Maternal(More)
OBJECTIVES The purpose of this study was to estimate the prevalence of major and minor congenital heart defects among fetuses and neonates using sonography in a general population of 4 areas surrounding Shanghai, China. METHODS Pregnant women were recruited between April 2004 and December 2005 in Jiaxing City, Suzhou City, Changshu County, and Haining(More)
Pregnant women and their newborn infants are at increased risk for influenza-associated complications, based on data from seasonal influenza and influenza pandemics. The Centers for Disease Control and Prevention (CDC) developed public health recommendations for these populations in response to the 2009 H1N1 pandemic. A review of these recommendations and(More)