sadat mentioned about what are the bases of haraim, specifically for each unit. here is an example about the electricity generation plant. if you have an answer , please tell me about vaccines . you have also seen that corona is an example. many people get vaccinated and get infected, and unfortunately, they also lose their lives in the medical field. we depend on the type of disease and depending on the biological agent, it may be a biological agent, such as the disease agent, the plague of the little scribes, which is called pr, and there is only one serotype of it, one form of it. it exists and the vaccine made from it is able to create immunity in livestock for up to 3 years and gives a good level of immunity, but in many diseases, vaccination is a factor in helping to prevent the disease, for example, in the foot and mouth disease that i gave as an example. in all the reference books or in the reference of kharbar agricultural organization of world fao, which is one of the most reliable. declares that the so-called vaccine alone is not able to prevent diseas