But if you only have a slight astigmatism -- your doctor may refer to it as a degree -- and you donât have another vision problem, you may not need them. Irregular astigmatism is far less common and is linked to problems with your cornea, the front part of the eye.
Malaria is one of the most infectious diseases in history. It has infected countless people across the globe and it still kills millions every year. The malaria parasite lives in the gut of the Anopheles mosquito and is transmitted through the bug's bite.
What Is A Communicable Disease Chain Essays and Research Papers. 1  What Is A Communicable Disease Chain Introduction A communicable disease is a disease that is transmitted through direct contact with an infected... individual or indirectly through a vector. It is also called a contagious disease (Communicable Disease , 2010).