The high growth rate of bacteria is especially dangerous in the case of the multiplication of pathogenic bacteria, for example …

The question contains, apparently, pathogenic bacteria, for example, corynebacterium diphtheria, shigella, which cause dysentery; salmonella; pneumococci and meningococci. These bacteria, like all others, are capable of rapid growth exponentially. This is usually prevented by the human immune system: macrophages, lymphocytes and antibodies actively resist infection. But in the case of weak immunity, the rapid multiplication of pathogenic bacteria leads to acute deadly diseases: fulminant sepsis, meningitis, pneumonia.