Introduction
Bacteria, viruses, as well as parasites have been surviving by commandeering our bodies and other organisms’ bodies to reproduce. Every one of us has been sick before. One wonders, what if everyone got sick. The disease causing organisms known as pathogens have a long history of existed and causing of diseases . Therefore, we will briefly look at pathogens by considering the manner in which they cause pandemics across different regions in the globe. We will begin by determining the different types of pathogens and diseases that pathogens are likely to cause and hence unravel on how they can cause the spread of a particular disease within a geographical region.
Types of pathogens and diseases
We can consider a pathogen as an infectious agent, or germ, which can produce diseases. Notably, there are various types of diseases caused by different types of pathogens or germs. We know that different kinds of pathogens are responsible for different types of diseases including smallpox, influenza, measles, chicken pox as well as mumps and Ebola among others. These different diseases come because of a specific type of pathogen known by the type of the diseases that it will cause . However, it is important to note that not all pathogens are unnecessarily undesirable to humans. Different types of pathogens include sub cellular infectious objects like prionic and viral pathogens, procarionts like bacterial pathogens although a vast majority of bacteria are harmless or indeed beneficial. Eucarionts include fungal pathogens, which can indeed cause diseases to humans. All these are types of pathogens, which are responsible for diseases that catch human. As such, it is evident that pathogens are in most cases harmful to man but like we said, not are harmful as we have others that are beneficial to certain systems in humans. Evidently, it is clear that pathogens play distinct roles in human life, either negative or positive . However, the effects that a particular type of pathogen has on the health of the humans determine its role in the body of the human.
How pathogens cause pandemics
The major channel by which pathogens cause pandemic is by spreading from a victim to the other in different ways. When a pathogen affects one victim, there usually is a likelihood of the diseases caused by the pathogens spreading to different individuals in the region. For instance, influenza is likely to spread rapidly since the disease causing pathogen will essentially float in the air and hence the people in the surrounding are likely to breathe in the pathogens and catch this disease. Therefore, a pandemic results from the spread of the pathogens within a region from one infected individual to the other . Horizontal transmission of the pathogens occurs between hosts of the same species which results to a pandemic. Evidently, transmission of pathogens occur through different routes including airborne, direct or indirect conduct, sexual contact, through breast milk and blood as well as other body fluids.
Conclusion
References
Ken, R. (2007). Bloodborne Pathogens: Be Prepared-Be Protected. Science Scope, , pp 4-36.
Nwe, O. K. (2001). Colonization of Vibrio Cholerae among Persons in Contact with Cholera Patients. Journal of Health Population and Nutrition, 19(1) , pp 5-39.
Richard, S. A. (2010). Human Activities & the Emergence of Pathogens. The American Biology Teacher, 72(8) , pp 10-59.
