1 People with diseases or conditions that weaken the immune system, such as HIV or AIDS, which makes them more vulnerable to a TB infection.  Those who are in confined living conditions such as homeless shelters, migrant farm camps, nursing homes, schools, and correctional facilities.
NO, there is no caffeine in Sugar. Sugar is derived from many sources. Table sugar is made from molasses derived from sugarcane juice and is chemically known as sucrose. It is also extracted from beetroot. Look up https://en.m.wikipedia.org/wiki/...
Some plants, such as sugar cane and sugar beet, accumulate high levels of sucrose and as such are used as commercial sources of sugar. A stalk of the cane plant contains about 14% sugar and sugar beets contain about 19%. Sucrose is a disaccharide, made up of the two sugar units, glucose and fructose (monosaccharides). It is present in honey, maple syrup, fruits, berries, and vegetables. It is also added to food products as crystalline sucrose (granulated, brown sugars) or in liquid form.