How the microbes causing meningitis and typhoid fever can induce fever and systemic shock in an infected patient?

Microbes causing meningitis and typhoid fever can induce fever and systemic shock through the release of endotoxins or exotoxins, which trigger an inflammatory response in the host. In meningitis, bacteria such as Neisseria meningitidis can release lipopolysaccharides (LPS) that activate immune cells, leading to the release of cytokines and subsequent fever. In typhoid fever, Salmonella enterica serotype Typhi can similarly provoke a strong immune response, resulting in systemic inflammation and shock. This overwhelming immune response can lead to complications like septic shock, characterized by severe hypotension and multi-organ dysfunction.