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 whooping cough incubation period is the time between becoming infected with the bacteria that cause this illness (Bordetella pertussis) and developing symptoms. The incubation period is commonly 7 to 10 days, but it can range from 4 to 21 days and, in rare cases, may be as long as 42 days.Whooping Cough Disease.hooping cough (pertussis) is a highly contagious infection. A person is most likely to transmit the bacteria that cause this illness when he or she is experiencing symptoms, especially during the first three weeks of symptoms.