Category A
Definition
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
can be easily disseminated or transmitted from person to person;
result in high mortality rates and have the potential for major public health impact;
might cause public panic and social disruption; and
require special action for public health preparedness.
.
Agents/Diseases
Anthrax (Bacillus anthracis)
Botulism (Clostridium botulinum toxin)
Plague (Yersinia pestis)
Smallpox (variola major)
Tularemia (Francisella tularensis)
Viral hemorrhagic fevers, including
Filoviruses (Ebola, Marburg)
Arenaviruses (Lassa, Machupo)
.
.
Category B
Definition
Second highest priority agents include those that
are moderately easy to disseminate;
result in moderate morbidity rates and low mortality rates; and
require specific enhancements of CDC’s diagnostic capacity and enhanced disease surveillance.
.
Agents/Diseases
Brucellosis (Brucella species)
Epsilon toxin of Clostridium perfringens
Food safety threats (Salmonella species, Escherichia coli O157:H7, Shigella)
Glanders (Burkholderia mallei)
Melioidosis (Burkholderia pseudomallei)
Psittacosis (Chlamydia psittaci)
Q fever (Coxiella burnetii)
Ricin toxin from Ricinus communis (castor beans)
Staphylococcal enterotoxin B
Typhus fever (Rickettsia prowazekii)
Viral encephalitis (alphaviruses, such as eastern equine encephalitis, Venezuelan equine encephalitis, and western equine encephalitis])
Water safety threats (Vibrio cholerae, Cryptosporidium parvum)
.
.
Category C
Definition
Third highest priority agents include emerging pathogens that could be engineered for mass dissemination in the future because of
availability;
ease of production and dissemination; and
potential for high morbidity and mortality rates and major health impact.
Agents
Emerging infectious diseases such as Nipah virus and hantavirus
.
Fonte: https://emergency.cdc.gov/agent/agentlist-category.asp