The survey collected sociodemographic information such as the participant's age, gender, region of residence, education, and whether the participant was a market worker (yes/no). This study also classified each participant's risk of AI by type of work: 1) nonmarket worker (i.e., shopper), 2) low risk market worker (e.g., flower vendor, vegetable vendor, cleaner, administrative staff), 3) medium risk market worker (e.g., pork vendor, beef vendor, seafood vendor, mutton vendor, cooked poultry vendor), and 4) high risk market worker (e.g., chicken butcher, chicken vendor, poultry organ vendor). It is noteworthy that the AI risk classification above takes into account the nearness in space to live poultry. For example, meat and seafood stands are normally located in the same section as poultry stands in a traditional market, and hence are closer to poultry vendors than are flower and vegetable vendors. As such, pork vendors, beef vendors, etc. are classified as medium risk market workers, whereas flower vendors and vegetable vendors are classified as low risk market workers.