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WHO PHASES <br />FEDERAL GOVERNMENT RESPONSE STAGES <br />INTER -PANDEMIC PERIOD <br />No new influenza virus subtypes have <br />been detected in humans. An influenza <br />virus subtype that has caused human <br />1 <br />infection may be present in animals. If <br />present in animals, the risk of human <br />disease is considered to be low <br />New domestic animal outbreak in at - <br />0 <br />risk country <br />No new influenza virus subtypes have <br />been detected in humans. However, a <br />2 <br />circulating animal influenza virus <br />subtype poses a substantial risk of <br />human disease. <br />PANDEMIC ALERT PERIOD <br />Human infection(s) with a new subtype, <br />but no human -to -human spread, or at <br />New domestic animal outbreak in at - <br />3 <br />most rare instances of spread to a close <br />0 <br />risk country <br />contact. <br />Small cluster(s) with limited human -to - <br />4 <br />human transmission but spread is <br />1 <br />Suspected human outbreak overseas <br />highly localized, suggesting that the <br />virus is not well adapted to humans. <br />Larger cluster(s) but human -to -human <br />spread still localized, suggesting that <br />the virus is becoming increasingly <br />Confirmed human outbreak <br />5 <br />better adapted to humans, but may not <br />2 <br />yet be fully transmissible (substantial <br />overseas <br />pandemic risk). <br />PANDEMIC PHASE <br />Widespread human outbreaks in <br />Pandemic phase: increased and <br />3 <br />multiple locations overseas <br />4 <br />First human case in North America <br />6 <br />sustained transmission in general <br />population <br />5 <br />Spread throughout U.S. <br />Recovery and preparation for <br />6 <br />subsequent waves <br />RECOVERY PHASE <br />7 <br />Focus on recovery of all operations <br />8 <br />Lessons Learned <br />D-25 <br />