Examples of Infectious Substances included in Category A

(Reference: WHO Guidance on regulations for the Transport of Infectious Substances 2011-2012)

UN Number and Proper Shipping Name Microorganism
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 haemorrhagic 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
Hantaviruses causing haemorrhagic fever with renal syndrome
Hendra virus
Hepatitis B virus (cultures only)
Herpes B virus (cultures only)
Human immunodeficiency virus (cultures only)
Highly pathogenic avian influenza virus (cultures only)
Japanese Encephalitis virus (cultures only)
Junin virus
Kyasanur Forest disease virus
Lassa virus
Machupo virus
Marburg virus
Monkeypox virus
Mycobacterium tuberculosis (cultures only)
Nipah virus
Omsk haemorrhagic 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)1
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 substance, affecting animals only 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)

NOTE: The table above ((Reference: Annex 2 WHO Guidance on regulations for the Transport of Infectious Substances 2011-2012) is not exhaustive. Infectious substances, including new or emerging pathogens, which do not appear in the table but which meet the same criteria shall be assigned to Category A. In addition, if there is doubt as to whether or not a substance meets the criteria it shall be included in Category A.

Shipping Category A Infectious Substances

Infectious substances which fall under Category A can only be transported in packaging which meets the UN Class 6.2 specifications and in accordance with Packaging Instruction (PI) 620. (See PI 620 below)

This ensures stipulated performance criteria are met such as a 9 m drop test, puncture test, pressure test and stacking test. The outer packaging must bear the UN specification marking which indicates that the packaging has passed the performance tests to the satisfaction of the competent authority.

Requirements for Packaging and Shipping Category A Substances

Packaging Requirements

  • Primary container is leakproof
  • Secondary container is leakproof
  • Outer container is rigid
  • UN specification marking:
    • Pressure tested at 95kPa
    • Drop tested from 9m
    • Puncture tested at 7kg
    • Stacking tested
  • Shipper must be trained

Markings and Labels

  • Shipper's name and address
  • Receiver's name and address
  • Name and telephone of responsible person (who is available 24 hours a day until shipment arrives)
  • Proper Shipping Name and UN Number
  • UN Specification Marking
  • Infectious substance label
  • Package orientation label (only used when primary container exceeds 50ml)


  • Airway Bill
  • Dangerous Goods Declaration Form Must be signed by the shipper
  • Import/Export permit (as applicable)
  • CARICOM Invoice

Triple Packaging System for Category A Infectious Substance

Example of Triple Packaging System for the packaging and labeling of Category A, Infectious Substance (Reference WHO Guidance on regulations for the Transport of Infectious Substances 2011-2012)