For seasonal influenza, it's about 10 percent, meaning one out of every 10 susceptible people exposed to an influenza case, we'll develop the infection. Now, let's have a look at some important categories of infectious diseases. Zoonotic diseases are diseases of animals which went and transmitted to humans can cause disease. It is estimated that over 60 percent of human infectious diseases are zoonotic. Examples of zoonotic diseases include diseases like leptospirosis, toxoplasmosis, can pile of actor and rabies. An emerging infectious disease is a disease that has appeared in the population for the first time, or one that may have existed previously, but is rapidly increasing in incidence or geographical range. Examples of emerging infectious diseases include Merce, Coby, Ebola, Hendra, and new influenza strains. Neglected tropical diseases are a group of tropical diseases that affect the poorest countries of the world. Traditionally, they have not received much global attention, but continue to cause illness in the most vulnerable groups of people in the world. They include diseases like leishmaniasis, trachoma, sleeping sickness, and schistosomiasis. Vector-borne diseases are diseases that are transmitted from an infected animal or human to another person through the bite of a vector. The most common vector is the mosquito. Others include ticks, flies, fleas or snails. Example of vector-borne diseases are malaria, dengue, sleeping sickness, and schistosomiasis. Vector- borne diseases are responsible for over 17% of all infectious diseases and cause more than 1 million deaths each year. So that's a quick introduction to infectious diseases. What they are some terms to describe them and a few different types.
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