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.
Based on WHO's statistics, the combination of AIDS, malaria, and tuberculosis is responsible for half (approximately 5 million) of all infectious-disease deaths each year. With that in mind, today we're going to look at the five most common infectious diseases around the globe.n addition, we'll also look at what, if any, global pharmaceutical companies may be able to take advantage of these multi-million-person, and even billion-person, opportunities. So, without further ado, here are the five most common infectious diseases. Hepatitis-B.