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 incubation period for HPV is weeks or months. Human papillomavirus lives on the skin. Cancer can form only in advanced stages and not in every case. The disease can be transmitted from person to person even when the infected person doesn't have any signs of human papillomavirus.hese symptoms are usually either warts on the genitals or abnormal cancer-causing skin growths on the penis or cervical region. It is difficult to determine a precise incubation period because this varies significantly, even among the same virus types.