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Introduction – Global Trends According to the World Health Organization (WHO) (2019), measles is a virus-borne disease that is exceedingly contagious and dangerous. Until the introduction of the measles vaccine in 1963 and widespread immunization, major epidemics occurred every 2–3 years, killing an estimated 2.6 million people each year. Measles is caused by a paramyxovirus virus that is transmitted through direct touch and the air. After invading the respiratory tract, the virus travels throughout the body. Measles appears to be a human disease that does not infect animals. Measles mortality have decreased dramatically as a result of increased vaccine campaigns (WHO, 2019; NHS, 2022). Measles is a highly contagious viral disease that is particularly harmful to children and can result in severe diarrhea, ear infections, blindness, pneumonia, and encephalitis (swelling of the brain). Some of these issues can result in death (UNICEF, 2022; National Center for Immunization and Respirat...

Obesity and overweight have become global epidemics, posing a serious danger to chronic disease prevention and wellness. Due to economic expansion, industrialization, mechanized transportation, urbanization, an increasingly sedentary lifestyle, and a nutritional transition to processed foods and high-calorie diets, the prevalence of obesity in many nations has doubled, even quadrupled, in the last three decades (Hruby & Hu, 2015; Tiwari, & Balasundaram, 2022). According to the World Health Organization (2021) “the Body mass index (BMI) is a simple index of weight-for-height that is commonly used to classify overweight and obesity in adults. It is defined as a person's weight in kilograms divided by the square of his height in meters (kg/m 2 ). An individual with a Body Mass Index (BMI) greater than or equal to 30 is considered obese”. Image: An obese Nigerian man Epidemiology takes an organized approach to problem solving especially when it has to do with the issue of obesi...