Respiratory Virus Detections/Isolations in Canada, August 28, 2011 - October 22, 2011

**Positive Parainfluenza Tests (%) in Canada by Region by Week of Report**
Week	Week End	Canada Tests	Para%	At Tests	Para%	QC Tests	Para%	ON Tests	Para%	Pr Tests	Para%	BC Tests	Para%
35	03-09-2011	830	3.01	20	0.00	257	1.95	203	3.94	300	4.00	50	0.00
36	10-09-2011	822	3.89	12	8.33	287	4.18	201	5.97	294	2.04	28	3.57
37	17-09-2011	1055	2.09	27	0.00	399	2.26	231	2.16	359	2.23	39	0.00
38	24-09-2011	1107	2.98	21	0.00	332	1.81	302	4.97	390	3.08	62	0.00
39	01-10-2011	1294	4.02	37	0.00	361	5.54	383	3.13	441	4.08	72	2.78
40	08-10-2011	1373	5.61	44	0.00	356	4.49	415	7.23	469	5.76	89	4.49
41	15-10-2011	1395	5.59	36	0.00	452	5.53	415	6.51	438	5.71	54	1.85
42	22-10-2011	1618	6.18	35	8.57	447	4.70	507	9.07	447	5.82	182	2.20