An employer or a self-employed person must conduct the risk assessment on the basis of all available information, including-
(a) classification of the HBA into the relevant risk group according to its level of risk of infection as contained in Annexure A;
(b) recommendations from the manufacturer, supplier or a competent person regarding additional control measures necessary in order to protect the health of persons against such agents as a result of their work;
(c) information on diseases that may be contracted as a result of the activities at the workplace;
(d) potential allergenic, infectious or toxic effects that may result from the activities at the workplace; and
(e) knowledge of diseases from which employees might be suffering and which may be aggravated by conditions at the workplace.