Although conflicting recommendations have been issued, recent evidence suggests that face masks may significantly reduce the spread of SARS-CoV-2. However, questions remain on how to effectively promote mask adoption. Research are conducting a randomized evaluation to evaluate the impact of free mask distribution combined with educational interventions on mask adoption in Kenya.

Low-income populations throughout the world often consume very few calories. At the time of this intervention in 2013, over 800 million people globally consumed fewer calories than were recommended to maintain a healthy weight. However, the impact of low caloric intake on economic productivity is not well researched. Researchers conducted a five-week randomized evaluation to test the impact of increased caloric intake on hours worked, earnings, and physical and cognitive ability for cycle-rickshaw drivers in Chennai, India. Drivers who consumed daily snacks worked and earned more and performed better on cognitive and physical tasks relative to drivers that received an equivalent value of cash. Supplemental survey data suggests that inaccurate beliefs and knowledge about the returns to calories and the caloric content of food may drive lower than recommended calorie consumption.

Researchers are conducting a randomized evaluation to test the impact of public health messages on hand washing and compliance with government mandated guidelines in Mexico.

To better understand barriers to COVID-19 testing for underserved communities, researchers evaluated the impact of varying flyer messaging and survey incentive rates on survey responses. Researchers will use survey responses to identify the most important barriers to testing and potential community leaders to effectively disseminate vital public health information. This research is ongoing. Results forthcoming.