A pyrogen is a substance that induces fever. These can be either internal (endogenous) or external (exogenous) to the body. The bacterial substance lipopolysaccharide (LPS), present in the cell wall of some bacteria, is an example of an exogenous pyrogen.
Kenya is a major producer of tea and coffee. Within the country, coffee is mostly drunk instant and it is not as popular as tea or Chai. Most Kenyans brew their tea with milk and lots of sugar, serving it scalding hot and very sweet. Lager is also popular in Kenya, with local brands made using cornstarch and sugar, as well as the more traditional ingredients of water, malt and hops.
The staple food in Zambia is a thick cornmeal mash called Nshima. For breakfast, Zambians serve Nshima thinned with water or milk and sweetened slightly with sugar. For lunch or supper, people usually eat Nshima with fish, meat, peanuts or beans (Ndiwa). Some traditional Zambian recipes are listed below: Nshima is made by boiling the cornmeal in water.