The objective of bioconfine- their biosecurity measures in order Surveillance and Control Measures for ment measures (internal biosecurity) to avoid contamination of Canadian the Pandemic (H1N1) 2009 Influenza is to avoid the propagation of the pig farms. [...] Their recommendations of the infectious agent, its survival in conditions for entry onto pig farms, are based on the principles of vigi- the environment, and the routes of the operation of ventilation systems, lance, proportionality, and flexibility. [...] The first is the status quo, cor- tious agents, but the majority of ommended not to have visitors inside responding to the current situation/ preventive and control actions must hog barns regardless of their clinical knowledge of the moderate effects of be adapted to the target pathogen. [...] Still, indus- ability of the vaccines at the start of Only one percent of the seasonal flu trial production such as the factory the national vaccination programs shots in adults were classified to lead farming in North America implicitly such as the one in Canada (37). [...] It is also for this recommended that all to reduce the clinical impact of the reason that vaccination of all work- workers in the swine influenza virus in the pigs, to reduce ers in contact with pigs was strongly contagion within the pig facility, and recommended in the United States.