The rules for hardship distributions vary by the type of plan from which you intend to take a hardship withdrawal. What constitutes a âhardshipâ is typically set forth in the plan itself.If your 401(k), 403(b) and 457(b) plan permits hardship withdrawals, for example, the plan may permit distributions for medical or funeral expenses, but not for the purchase of a principal residence or for payment of tuition and education expenses.he rules for hardship distributions vary by the type of plan from which you intend to take a hardship withdrawal. What constitutes a âhardshipâ is typically set forth in the plan itself.
Another difference between the two is that while etiology is content to expound on origin, cause, and effect, epidemiology is an ongoing study which keeps known diseases in check while keeping a lookout for new, unidentified threats to human well-being.
What Is Epidemiology? Epidemiology is the branch of medical science that investigates all the factors that determine the presence or absence of diseases and disorders. Epidemiological research helps us to understand how many people have a disease or disorder, if those numbers are changing, and how the disorder affects our society and our economy. The epidemiology of human communication is a rewarding and challenging field.