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.
Bordetella pertussis is a bacterium that targets the lungs, typically causing a three-stage respiratory infection that is known as pertussis or whooping cough. It is highly contagious and causes a prolonged infection that is passed from person to person through respiratory droplets and close contact.Pertussis tests are performed to detect and diagnose a B. pertussis infection.The incubation period for pertussis varies from a few days to up to three weeks.t is highly contagious and causes a prolonged infection that is passed from person to person through respiratory droplets and close contact. Pertussis tests are performed to detect and diagnose a B. pertussis infection. The incubation period for pertussis varies from a few days to up to three weeks.