Category A disease agents
The U.S. public health system and primary healthcare providers must be prepared to address various biological agents, including pathogens that are rarely seen in the United States. High-priority agents include organisms that pose a risk to national security because they,
Category B disease agents
Second highest priority agents include those that,
Category C disease agents
Third highest priority agents include emerging pathogens that could be engineered for mass dissemination in the future because of,
These agents include many emerging infectious diseases such as Nipah virus and Hantavirus
Flu pandemic is a global flu outbreak that occurs when a new flu virus appears in the human population, causes serious illness, and then spreads easily from person to person worldwide. Flu resources are provided below.