E-cigarettes (e-cigarettes) have been using social media as an informative platform to promote e-cigarettes for their users. The most popular social media in Vietnam were YouTube and Facebook. The information and knowledge could affect e-cigarette user’s belief and the way they make a decision. Despite this, there is a gap in our knowledge of policy maker’s in user’s perceptions about how they feel with promotion on social media platform in Vietnam. This study aimed to describe the promotion of e-cigarettes by providers on some social networks and to describe electronic cigarette users’ feedback about videos/posts of providers on some social networks in Vietnam in 2019. Searches in major electronic databases, including Facebook and YouTube, were conducted using the following search terms: “electronic cigarette,” “electronic vaporizer,” “electronic pod,”. The video/post was selected if they’re from providers and include advertising content on the social media platform during 2019. Of the 104 e-cigarette related videos/posts retrieved, there were 27% on Facebook and 28% on YouTube. The three most common advertising contents were beneft of using e-cigarette, negative health consequences and entertainment effects.

Handwashing with soap (HWWS) practice among mothers is critical in preventing childhood illnesses. This study aims to describe HWWS knowledge and practice among mothers of children aged under 11 and associated factors. This cross-sectional study was conducted on 319 mothers in 4 provinces in Vietnam, namely Dien Bien, Tuyen Quang, Hoa Binh, and Dak Lak, representing the region Northern Mountains and Central Highlands 2019. Knowledge of HWWS is measured through questionnaire interviews. HWWS practice is measured by the “Sticker Diary” method. Results show that while the proportion of mothers with knowledge on HWWS after defecation/toilet/using latrine is 84.6%, only 19.4% of mothers said that they need to HWWS after cleaning a child’s bottom/child’s feces, 17.6% before feeding children, and 39.2% HWWS before cooking/serving food. Less than 50% of mothers practice washing their hands with soap at critical times. The study shows a signifcant association between attributes such as educational level, occupation, economic status, and knowledge of HWWS. The study also fnds an association between the ethnic group, fnancial situation, knowledge, and practice HWWS among mothers of children under age 11.