COVID-19 Impact.pdf

COVID-19 pandemic has varying impacts globally, with some areas having few cases and others having significant numbers and differing mortality rates. The age profiles of populations may be a factor, with countries having older populations possibly experiencing more cases, higher morbidity, and mortality. The virus, known as SARS-CoV-2, spreads rapidly between humans, mainly via respiratory tract droplets and fomites, and presents with symptoms such as fever, cough, and difficulty breathing. Preliminary studies suggest a 2.2% case fatality rate, lower than its predecessors, with the elderly and those with comorbidities being most vulnerable. The pandemic's progression is tracked by websites like Worldometer, showing the Americas as the hardest-hit region, while Africa has relatively low numbers. The age structure of a population determines many societal aspects, and demographers divide populations into three broad age groups, with the age dependency ratio and working-age bracket being important for social policies. Population pyramids help visualize the demographic structure, and COVID-19 gives new significance to mortality and age, with morbidity and mortality increasing with age.