Children engaged in child labour in tobacco growing are involved in many types of tasks, as shown in the Report on Child Labour in the Tobacco Growing Sector in Africa (2000). Childrenâs health, wellbeing, and opportunities for a better life are often the cost of childrenâs involvement in hazardous child labour. 2  Child labour in tobacco growing can pose health risks, including green tobacco sickness, which can cause fatigue and nausea.
Clinical Features The incubation period of pertussis is commonly 7â10 days, with a range of 4â21 days, and rarely may be as long as 42 days. The clinical course of the illness is divided into three stages.
Incubation period. The strep throat incubation period can vary from person to person. Usually the incubation period lasts between one to five days, meaning that a person who was exposed to the strep bacteria can manifest symptoms after one, two, three, four or five days.Most people develop the illness three days after contact.ncubation period. The strep throat incubation period can vary from person to person. Usually the incubation period lasts between one to five days, meaning that a person who was exposed to the strep bacteria can manifest symptoms after one, two, three, four or five days.