Table 3. Positive Predictive Value (PPV) for bird outbreaks predicting the occurrence of a human case of H5N1 HPAI in the same governorate within the next 14 days.

Time Period	# Bird Outbreaks	# with Human Case within 14 days	Positive Predictive Value
9/1/2005–8/31/2006	616	85	13.8
9/1/2006–8/31/2007	270	14	5.2
9/1/2007–8/31/2008	166	5	3.0
9/1/2008–8/31/2009	134	21	15.7
9/1/2009–8/31/2010	398	61	15.3
9/1/2010–8/31/2011	453	70	15.5
Total	2037	256	12.6