Hazard Group 4
Hazard Group 4A category of microorganisms from the UK’s Advisory Committee on Dangerous Pathogens which corresponds to biological agents that cause severe human disease and are a serious hazard to employees. Hazard Group 4 includes agents of viral haemorrhagic fever and some encephalidites, which are likely to spread to the community. There is no effective prophylaxis or treatment for Category 4 agents.
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