On a daily basis, your body fights foreign invaders such as viruses, bacteria, and parasites posing threat to your health. You may hardly notice it due to your immune system which constantly battles these invaders before onset of symptoms. Sometimes, however, the harmful germs gain the upper hand, where this occurs, you will need to boost your immune system with medicine and other treatments.
For years, people knew little or nothing about the dangers of microscopic or other small harmful organisms. However, when 19th century scientists confirmed the link between germs and disease, we became better equipped to defend ourselves. Medical researchers have since eliminated or greatly reduced the threat of some infectious diseases, including smallpox and polio. Recently, however, others, such as yellow fever and dengue, have made a comeback, Why?
Some of the reasons includes;
-Every year, millions of people travel around the globe, often transporting disease causing agents.
- Some bacteria…


https://healthylivingandresearch..com.ng/2018/05/disease-reducing-risk.html