And what role does the bioprotecció here? Since only those interested pathogens ma that may have a

Microorganisms have been classified into four risk groups (WHO, 2004 can also find the link to the American Biological Safety Association (ABSA) http://www.absa.org/riskgroups/) systematization only applies to works laboratory.
According ma to the WHO (WHO, World Health Organization, in English), classifies each country pathogens in this country by risk group (GR) based on the pathogenicity of the organism (that would be the same in country A and one B) forms of transmission ma (characteristic of the pathogen, and therefore equal to the country A and country B) and host range of the organism (which is not equal to each country, depending on the animals or vectors present, especially when it comes to zoonotic pathogens). These can be influenced by existing levels of immunity, density and movement of populations guests, the presence of competent vectors and appropriate standards of environmental hygiene. The classification into risk groups also consider:
The availability of effective preventive measures, such as vaccination or prophylaxis by the antiserum; sanitary measures, for example, the level of food security and water supply; control animal reservoirs or arthropod vectors; the movement of people or animals; and the importation ma of infected animals or animal products.
The availability ma of effective treatment. This includes passive immunization and post-exposure vaccination, antibiotics and chemotherapeutic agents, taking into account the possibility of the emergence of resistant strains. It is important to take into account the conditions prevailing in the geographical area in which the microorganisms are.
WHO Risk Group 2 or GR2 (moderate individual risk, low risk population). A pathogen that can cause human or animal disease but is unlikely to be a serious danger danger to laboratory workers, the community, livestock and the environment. ma Exposure to pathogen exposure in a laboratory ma can cause serious infection, but treatment and preventive measures are effective existing and available; the risk of spread of infection is limited. Examples include hepatitis A virus, influenza virus, Norovirus, etc.
WHO Risk Group 3 or GR3 (high individual risk, low risk population). A pathogen that usually causes serious human or animal disease but is not transmitted from one infected individual to another. There is treatment available and preventive measures are effective. Examples would be the virus West Nile fever, the highly pathogenic avian influenza virus, Chikungunya virus, Yersinia pestis, etc.
WHO Risk Group 4 or GR4 (high individual and community risk). A pathogen that usually causes serious or very serious human or animal disease that spreads easily from one person (or animal) to another, directly or indirectly. There are treatments available and effective preventive measures. In the case of Ebola virus hemorrhagic fevers like, Marburg.
It is not my aim more detail these groups; only stress that there is no exact equivalence between risk groups (GR1 to GR4) and biosafety levels (NBS1 in NBS4, with equivalents in English Biosafety Level (BSL) 1 to 4). The risk group classifies a pathogen within a human scale (which can inflict evil humans and their interests: livestock, agriculture) while biosecurity refers to the practices and operational procedures but also the design, construction the facility and equipment installation (elements that have bio). Assigning an experimental activity ma with a particular pathogen in a biosafety level (NBS) should be based on a risk assessment consistent. In a pathogen commonly GR 2 is assigned a biosafety level 2, but in specific ma circumstances (very high concentrations of the pathogen, high probability of generating aerosols, etc.) Installation can sue a BSL3 facility.
And what role does the bioprotecció here? Since only those interested pathogens ma that may have a dual use, ie that can be used to "terrorists", his concern-field performance is lower. There are many microorganisms GR2 and GR3 are not in the list of selected agents are flexible and .... At the beginning of the outbreak of the new influenza A (H1N1) in Mexico for the first samples ma analyzed ma Mexico were outside their own vehicle in Canada and the US CDC, such as neighbors, as a result of a strict application the regulation of selected agents that prevent its rapid entry into US soil.
If researchers want to do research ma on a pathogen and labels GR4 virtually no one will work (there are very poq