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.
The time between exposure to the virus and the time you experience symptoms is called the incubation period. The incubation period for the influenza virus is one to four days, with an average of two days for adults.Once the virus enters the body, it begins to multiply.After about a day and a half, these new particles shed off their lining so that they can enter secretions such as saliva and phlegm.he time between exposure to the virus and the time you experience symptoms is called the incubation period. The incubation period for the influenza virus is one to four days, with an average of two days for adults.