How does food get contaminated? The unsafe habits that kill more than 400,000 people a year

 Globally, one in ten people are affected by food-borne diseases each year. [iStockphotos]

Unsafe foods, according to the World Health Organization (WHO), contribute to poor health, including impaired growth and development, micronutrient deficiencies, noncommunicable and infectious diseases, and mental illness. Globally, one in ten people are affected by foodborne diseases each year. Antonina Mutoro, a nutrition researcher at the African Population and Health Research Center, explains what causes food contamination and how we can lower the risk of disease.

What is food contamination?