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Category A Infectious Substances

 A Category A infectious is a substance which is transported in a form that, when exposure to it occurs, is capable of causing permanent disability, life-threatening or fatal disease in otherwise healthy humans or animals.

Infectious substances meeting these criteria which cause disease in humans or both in humans and animals must be assigned to UN 2814. Infectious substances which cause disease only in animals must be assigned to UN 2900. The assignment to UN 2814 or UN 2900 must be based on the known medical history and symptoms of the source human or animal, endemic local conditions, or professional judgment concerning individual circumstances of the source human or animal.

The table below is not meant to be all inclusive and cannot account for emerging pathogens.  Any infectious substance that meets the definition of a Category A substance as defined above must be shipped and packaged as a Category A.

Please note: ‘cultures only’ appearing next to an organism on the list below indicates Category A status only if has been amplified through cultivation.  ‘Cultures only’ agents, shipped without amplification, are shipped under the less restrictive criteria for Category B.

UN Number and Proper Shipping Name


UN 2814 Infectious substance affecting humans

Bacillus anthracis(cultures only)
Brucella abortus(cultures only)
Brucella melitensis(cultures only)
Brucella suis(cultures only)
Burkholderia mallei– Pseudomonas mallei–
Glanders (cultures only)
Burkholderia pseudomallei– Pseudomonas
pseudomallei (cultures only)
Chlamydia psittaci– avian strains (cultures only)
Clostridium botulinum(cultures only)
Coccidioides immitis(cultures only)
Coxiella burnetii(cultures only)
Crimean-Congo hemorrhagic fever virus
Dengue virus (cultures only)
Eastern equine encephalitis virus (cultures only)
Escherichia coli, verotoxigenic (cultures only)
Ebola virus
Flexal virus
Francisella tularensis(cultures only)
Guanarito virus
Hantaan virus
Hantavirus causing hemorrhagic fever with renal
Hendra virus
Hepatitis B virus (cultures only)
Herpes B virus (cultures only)
Human immunodeficiency virus (cultures only)
Highly pathogenic avian influenza virus (cultures
Japanese Encephalitis virus (cultures only)
Junin virus
Kyasanur Forest disease virus
Lassa virus
Machupo virus
Marburg virus
Monkeypox virus
Nipah Virus
Mycobacterium tuberculosis(cultures only)
Omsk hemorrhagic fever virus
Poliovirus(cultures only)
Rabies virus (cultures only)
Rickettsia prowazekii(cultures only)
Rickettsia rickettsii(cultures only)
Rift Valley fever virus (cultures only)
Russian spring-summer encephalitis virus(cultures only)
Sabia virus
Shigella dysenteriae type 1(cultures only)
Tick-borne encephalitis virus(cultures only)
Variola virus
Venezuelan equine encephalitis virus (cultures only)
West Nile virus(cultures only)
Yellow fever virus(cultures only)
Yersinia pestis(cultures only)
UN 2900
Infectious substances affecting animals
African swine fever virus (cultures only)
Avian paramyxovirus Type 1 – Velogenic Newcastle disease virus (cultures only)
Classical swine fever virus (cultures only)
Foot and mouth disease virus (cultures only)
Lumpy skin disease virus (cultures only)
Mycoplasma mycoides– Contagious bovine pleuropneumonia (cultures only)
Peste des petits ruminants virus (cultures only)
Rinderpest virus (cultures only)
Sheep-pox virus (cultures only)
Goatpox virus (cultures only)
Swine vesicular disease virus (cultures only)
Vesicular stomatitis virus (cultures only)