English level: Zalo Kings

Science is full of people whose contributions make them admirable. I particularly like biological sciences and among the many scientists related to this area I greatly admire Edward Jenner. I admire him because he was the father of vaccination, a discovery that has saved millions of lives. Edward Jenner was an English physician and scientist who developed the first vaccine, in 1796.  Although in those times there were already techniques to immunize the body against diseases, these were very dangerous, since several of these techniques consisted of introducing secretions into the body (for example, pus from scabs) containing microorganisms of the disease against which the patient was to be immunized, but this often led to the onset of the disease and even death.  Edward Jenner discovered that people infected with a cow disease called cowpox (a "smallpox-like disease" of cows that produces mild, non-lethal symptoms in humans) were immune to smallpox. Knowing this, Jenner inocul...

 My favorite food is pizza. This wonderful food consists of  a fla t dough covered with a base of cheese and tomato sauce. Various ingredients can be placed on this base, such as tomato slices, olives, ham, pepperoni or exotic ingredients, such as pineapple chunks. Personally, I like pizza with pulled pork, meatballs, red onions and  barbecue sauce. The ingredients and preparation of a pizza can be summarized as follows: You have to make a wheat flour dough, which is flattened and given a generally rounded shape, although you can also give it a long rectangular shape (actually the shape and size is up to you). This flattened dough should be covered with tomato sauce, cheese and the ingredients and condiments you want. Finally, the coated dough is heated in an oven until the dough is baked and the cheese is melted. The things I like most about pizza are: the cheese, and that it can be prepared with the weirdest combination of ingredients you can think of. Regarding the dou...