In your own words, describe the difference between noninfectious and infectious diseases.
Noninfectious diseases, also known as noncommunicable diseases, are medical conditions that cannot be transmitted from one person to another. These diseases typically develop due to genetic factors, lifestyle choices, environmental factors, or a combination of these. Examples of noninfectious diseases include heart disease, cancer, diabetes, and Alzheimer's disease. Generally, these conditions do not spread through direct contact or exposure to an infected individual.
On the other hand, infectious diseases are caused by microorganisms such as bacteria, viruses, fungi, or parasites, and can be transmitted from one person to another. These diseases can be contagious and may spread through direct contact, respiratory droplets, contaminated food or water, insect bites, or sexual contact. Examples of infectious diseases include influenza, tuberculosis, HIV/AIDS, malaria, and COVID-19.
In summary, the main distinction between noninfectious and infectious diseases lies in their ability to spread from person to person. Noninfectious diseases are not transmissible between individuals, while infectious diseases can be passed on through various means of transmission.