EVSCAN (Week 36)
As of Sep 3, 2015
EV SCAN is a weekly report produced by the Enteric and Vector-borne Disease Office of the Centre for Health Protection, Department of
Health. It summarises the surveillance findings of local situation of hand, foot and mouth disease (HFMD) and enterovirus 71 (EV71)
infection.
HIGHLIGHTS



The activity of hand, foot and mouth disease (HFMD) is at high level in Hong Kong.
The usual peak season for HFMD and EV71 infection is from May to July. In the past few years, a smaller winter peak also occurred from
October to December.
HFMD is a common disease in children usually caused by enteroviruses such as Coxsackie viruses and EV71. EV71 infection is of
particular concern as it is more likely to be associated with severe medical complications and even death.
LATEST FIGURES IN HONG KONG
HFMD (including herpangina) institutional outbreaks
Time Period
Number reported
This week, preliminary data (Week 36, Aug 30 to Sep 3)
3
Last week (Week 35, Aug 23 to Aug 29)
8
2015 as of Sep 3
248
Laboratory confirmed EV71 infection
Time Period
Number reported
This week, preliminary data (Week 36, Aug 30 to Sep 3)
0
Last week (Week 35, Aug 23 to Aug 29)
1
2015 as of Sep 3
50
Cases with severe complication in 2015 as of Sep 3
5
Fatal cases in 2015 as of Sep 3
0
Severe paediatric enterovirus infection (other than EV71 and poliovirus)
Time Period
Number reported
This week, preliminary data (Week 36, Aug 30 to Sep 3)
0
Last week (Week 35, Aug 23 to Aug 29)
0
2015 as of Sep 3
7
Fatal cases in 2015 as of Sep 3
0
ANNUAL NUMBER OF HFMD OUTBREAKS AND EV71 INFECTION IN HONG KONG
Number of HFMD
(including herpangina)
institutional outbreaks
Persons affected in HFMD
(including herpangina)
institutional outbreaks
2009
103
2010
Year
Number of EV71 cases
Number of EV71 deaths
727
31
1
851
5025
101
0
2011
253
1370
68
1
2012
382
2216
59
0
2013
779
5151
12
0
2014
346
2087
68
1
1
Figure 1. No. of EV71 cases by week since 2013
(preliminary data for this week)
Figure 5. HFMD sentinel surveillance based at
child care centres/kindergartens by week since 2013
7
6
5
4
3
2
1
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Consultation rate for HFMD (per 1000 consultations)
50
40
30
20
10
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
20%
15%
10%
5%
Jan
Figure 2. No. of HFMD institutional outbreaks by week
since 2013 (preliminary data for this week)
60
25%
Dec
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Number of institutional HFMD outbreaks
Jan
30%
0%
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
0
35%
Dec
50
40
30
20
10
Apr
May
Jun
Jul
Aug
Sep
Oct
Jun
Jul
Aug
Sep
Oct
Nov
7
6
5
4
3
2
1
0
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Nov
Dec
1.2
1
0.8
0.6
0.4
0.2
0
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Figure 4. Accident & Emergency Departments surveillance of
HFMD syndrome group since 2013
Rate (per 1000 coded cases)
8
7
6
5
4
3
2
1
0
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Dec
1.4
Jan
Jan
Dec
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Consultation rate for HFMD (per 1000 consultations)
60
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Number of hospital admissions of HFMD
70
Mar
May
Figure 7. HFMD sentinel surveillance among
general outpatient clinics by week since 2013
80
Feb
Apr
8
Figure 3. No. of hospital admission episodes of HFMD
by week since 2013
Jan
Mar
Figure 6. HFMD sentinel surveillance among
general practitioners by week since 2013
Jan
0
Feb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Number of EV71 cases
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Proportion of CCC/KG with HFMD cases
9
Nov
Dec
Legend: - - - - - - 2013
2
▬ ▬ ▬ 2014
▬▬ 2015
Dec