The role of bacteria in nature, economy. Disease-causing bacteria and measures to combat them.

Bacteria are a group of non-nuclear microorganisms. The organism of a bacterium is a unicellular microorganism. The forms of bacteria are varied. The most common are spherical, rod-shaped and convoluted. A bacterial cell has a wall, a cytoplasmic membrane, a cytoplasm with inclusions, and a nucleotide.
In nature, bacteria play a very important role; they take the most active part in the cycle of substances in nature. All organic compounds and a significant part of inorganic ones undergo significant changes with the help of bacteria. With the help of bacteria, humus and humus are formed. Also, in the work of sewage treatment plants, the property of bacteria is used to break down organic substances and turn them into harmless inorganic ones. But there are a number of bacteria that are not only harmful to humans, but can be deadly.
Among bacteria, there are many disease-causing (pathogenic) species that can cause serious illness. So, the bacterium Salmonella can cause typhoid fever, the bacterium Shigella – dysentery, streptococci – caries, meningitis, pneumonia. Treatment should always be carried out in a timely manner. The main fighter against bacteria can be called antibiotics – substances that suppress and kill pathogens.