Detection of parainfluenza viruses in respiratory specimens in 2024

Week number	Date	No. of specimen tested	Parainfluenza 1		Parainfluenza 2		Parainfluenza 3		Parainfluenza 4
Week number	Date	No. of specimen tested	No.	%	No.	%	No.	%	No.	%
1	31/12/2023 - 06/01	7106	37	0.52	11	0.15	79	1.11	14	0.20
2	07/01 - 13/01	7401	24	0.32	11	0.15	90	1.22	17	0.23
3	14/01 - 20/01	6736	23	0.34	9	0.13	70	1.04	15	0.22
4	21/01 - 27/01	6584	22	0.33	6	0.09	81	1.23	9	0.14
5	28/01 - 03/02	7127	17	0.24	4	0.06	64	0.90	14	0.20
6	04/02 - 10/02	6478	15	0.23	2	0.03	78	1.20	4	0.06
7	11/02 - 17/02	7960	14	0.18	4	0.05	91	1.14	8	0.10
8	18/02 - 24/02	8766	14	0.16	5	0.06	105	1.20	12	0.14
9	25/02 - 02/03	7842	6	0.08	1	0.01	122	1.56	4	0.05
10	03/03 - 09/03	8436	8	0.09	7	0.08	87	1.03	5	0.06
11	10/03 - 16/03	8416	6	0.07	2	0.02	88	1.05	11	0.13
12	17/03 - 23/03	8834	10	0.11	1	0.01	83	0.94	10	0.11
13	24/03 - 30/03	7999	9	0.11	4	0.05	95	1.19	3	0.04
14	31/03 - 06/04	7983	6	0.08	3	0.04	88	1.10	7	0.09
15	07/04 - 13/04	7652	2	0.03	4	0.05	94	1.23	4	0.05
16	14/04 - 20/04	8096	5	0.06	4	0.05	98	1.21	11	0.14
17	21/04 - 27/04	8657	9	0.10	1	0.01	90	1.04	9	0.10
18	28/04 - 04/05	9217	4	0.04	5	0.05	116	1.26	7	0.08
19	05/05 -11/05	8935	1	0.01	6	0.07	99	1.11	6	0.07
20	12/05 - 18/05	8667	1	0.01	3	0.03	85	0.98	6	0.07
21	19/05 - 25/05	8277	1	0.01	3	0.04	91	1.10	8	0.10
22	26/05 - 01/06	8063	3	0.04	3	0.04	97	1.20	9	0.11
23	02/06 - 08/06	7278	2	0.03	1	0.01	103	1.42	7	0.10
24	09/06 - 15/06	7323	1	0.01	3	0.04	66	0.90	3	0.04
25	16/06 - 22/06	7747	1	0.01	9	0.12	90	1.16	7	0.09
26	23/06 - 29/06	8400	4	0.05	23	0.27	89	1.06	3	0.04
27	30/06 - 06/07	7734	4	0.05	26	0.34	97	1.25	11	0.14
28	07/07 - 13/07	7929	5	0.06	27	0.34	93	1.17	9	0.11
29	14/07 - 20/07	7508	10	0.13	8	0.11	79	1.05	11	0.15
30	21/07 - 27/07	8128	10	0.12	15	0.18	61	0.75	12	0.15
31	28/07 - 03/08	7711	6	0.08	13	0.17	68	0.88	8	0.10
32	04/08 - 10/08	8051	5	0.06	7	0.09	41	0.51	7	0.09
33	11/08 - 17/08	7303	0	0.00	14	0.19	20	0.27	5	0.07
34	18/08 - 24/08	7208	3	0.04	10	0.14	46	0.64	7	0.10
35	25/08 - 31/08	7458	1	0.01	7	0.09	23	0.31	6	0.08
36	01/09 - 07/09	7061	6	0.08	9	0.13	23	0.33	6	0.08
37	08/09 - 14/09	6882	2	0.03	6	0.09	13	0.19	4	0.06
38	15/09 - 21/09	6890	4	0.06	4	0.06	22	0.32	8	0.12
39	22/09 - 28/09	6992	8	0.11	15	0.21	19	0.27	9	0.13
40	29/09 - 05/10	6707	8	0.12	14	0.21	11	0.16	18	0.27
41	06/10 - 12/10	6448	7	0.11	22	0.34	16	0.25	16	0.25
42	13/10 - 19/10	6836	8	0.12	10	0.15	14	0.20	20	0.29
43	20/10 - 26/10	6430	9	0.14	7	0.11	20	0.31	21	0.33
44	27/10 - 02/11	6688	12	0.18	10	0.15	19	0.28	20	0.30
45	03/11 - 09/11	6674	14	0.21	12	0.18	21	0.31	23	0.34
46	10/11 - 16/11	7007	24	0.34	13	0.19	28	0.40	39	0.56

Remarks:

1. For specimens received from 10 February 2014 onwards, molecular testing has replaced viral culture. Please interpret the data and trends in light of the enhanced sensitivity of molecular testing, and hence positive detection rates.

2. Figures are subject to minor adjustments.

3. Multiple specimens may have been received for testing from the same patient.
4. As a result of disruptions in laboratory testing from early 2020 to early 2023, please interpret the data with caution.