Communicable Disease Report
Volume 6
Number 1
5 January 1996
ISSN 1350-9357
CDR
Respiratory syncytial virus activity and flu-like illness
Outbreaks of respiratory syncytial virus (RSV) infection occur
each winter and
usually peak in December or January (
CDR
1995; 5:
21). RSV infection is one cause
of flu-like illness seen in the community and accounts for a
high proportion of
cases of acute respiratory infection in very young children.
Almost all the RSV
infections reported to the PHLS Communicable Disease
Surveillance Centre have
been diagnosed in children under the age of 1 year (figure 1),
in whom the clinical
illness is most often described as bronchiolitis. During
periods of high activity,
however, the infection may be responsible for cases of acute
respiratory disease
in other age groups, including elderly people.
Respiratory tract
infections
:
weeks 48 - 52/95
Bacteraemia and bacterial
meningitis
:
weeks 48 - 52/95
Unusual infections
Notices
Notifications of infectious
diseases
(To be despatched with next
issue)
Figure 1 Age distribution (%) of RSV laboratory reports:
England and Wales
1990 to 1995
%
<1m 1-11m 1-4y 5-9y 10-14y 15-44y 45-64y 65y+ NK
0
25
50
75
100
Age
The proportion of cases of RSV infection diagnosed by virus
isolation rose
from 1.3% in 1990 to 5.3% in 1995. Overall, in these six years
91% of cases were
diagnosed by detection of antigen, 4% by isolation, and 2% by
serology.
Clinical indices show that influenza activity has continued at
increased levels
in recent weeks in England. Data from the Royal College of
General Practitioners
spotter practices this season show rates of influenza and
flu-like illness to be
highest in children aged 0 to 4 years, which may reflect the
high level of RSV
activity also circulating in this age group. Figure 2 shows a
simultaneous rise in
laboratory reports of influenza A and RSV infection in the
general population this
winter.
Figure 2 All laboratory reports of RSV and influenza A in
England and Wales 1995
40 41 42 43 44 45 46 47 48 49 50 51 52
0
200
400
600
800
1000
1200
0
50
100
150
200
250
300
Influenza A
RSV
RSV
Influenza A
Week
Correspondence to: Editor CDR,
PHLS Communicable Disease Surveillance Centre,
61 Colindale Avenue, London NW9 5EQ
Tel: 0181 200 6868 Fax: 0181 200 7868 Telex: 8953942
Public
Health Laboratory Service
CDR WEEKLY
CDR
5 Jan 1996 Vol 6 No
1 Communicable Disease Report
2
*
average for past three
years.
Respiratory tract infections, England and Wales: laboratory
reports, weeks 48 – 52/95
Number of reports received Total Average for
reports weeks 48-52
Laboratory reports 48/95 49/95 50/95 51/95 52/95 48-52/95 (last
5 years)
Adenovirus
(excluding
EM faeces) 42 31 39 51 25 188 189 *
Coronavirus
1 – –
– – 1 5
Influenza A
70 190 175
229 176 840 212
Influenza B
3 3 1 2 1 10
11
Parainfluenza
12 13 10 5
4 44 56
RS virus
483 595 769
1068 786 3701 2504
Rhinovirus
9 5 12 8 9 43
52
Adenovirus
(excluding
EM faeces and types 40, 41
[group
eF]):
49 had eye infections, 10 had bronchiolitis,
5
ehad
pneumonia, and 1 had croup. M 1y and M 2y with
meningitis; M 8y with Guillain-Barré syndrome. Two
patients were immunocompromised: 1 after bone marrow
transplant (BMT), 1 with leukaemia. One patient had
concurrent cytomegalovirus infection. Two regions
reported more than 10% of cases: Trent (35 cases) and
Yorkshire (20). Ninety-eight patients (53%) were aged
under 5 years.
Coronavirus:
1
case with croup was reported from Mersey
region.
Influenza A
(276
isolates, 52 microscopy, 151 fourfold
rises, 361 single high titres): 172 patients had pneumonia,
64 had bronchiolitis, and 2 had croup. M 12y with
pericardial effusion and suspected myocarditis; M 19y
with Miller Fisher syndrome (variant of Guillain-Barré
syndrome); M 19y with suspected meningitis; M 33y with
suspected pericarditis; M 80y died; F 40y whose husband
has psittacosis; F 67y with suspected myocarditis; F 89y
was part of a small outbreak in a geriatric hospital in
Wessex. Fifteen patients were immunocompromised:
4
ewith
leukaemia, 5 after organ transplants, 1 with
Wegener’s granulomatosis, 1 with Addisonian crisis, 1
ewho
was HIV-1 antibody positive, 1 with cystic fibrosis, 2 whose
underlying conditions were not stated. Six patients had
concurrent infections: 4 with respiratory syncytial virus
(RSV), 1 with
Mycoplasma
pneumoniae, 1ewith
suspected
glandular fever. Three regions reported more than 10% of
cases: S Western (166 cases), W Midlands (131), and Trent
(103). Five hundred and fifty-eight patients (66%) were
aged 15 years or over.
Influenza B
(1
microscopy, 2 fourfold rises, 7 single high
titres): one patient had pneumonia. M 39y had travelled
abroad (Ethiopia). No region reported more than 2 cases.
Seven patients (70%) were aged 15 years or over.
Parainfluenza
:
type 1, 15; type 2, 17; type 3, 9; type 4, 1;
untyped, 2. Fifteen patients had bronchiolitis, 1 had
pneumonia, and 4 had croup. Two patients were
immunocompromised: 1 with leukaemia, 1 with BMT.
One patient had concurrent infection with RSV. Two
regions reported more than 10% of cases: W Midlands
(9
ecases)
and Northern (6). Thirty-eight patients (86%)
were aged under 5 years.
Respiratory syncytial virus
:
1321 patients had bronchiolitis,
20 had pneumonia, and 3 had croup. Ten patients were
immunocompromised: 4 with leukaemia, 2 with BMT,
1
eafter
cardiac surgery, 2 with cystic fibrosis, 1 with
congenital immunodeficiency. M 2m with osteomyelitis;
premature M 7m with hydrocephalus and Hirschsprung’s
disease; F
e3m
died suddenly; F 1y with congenital heart
disease. Two patients had concurrent infections: 1 with
poliovirus type 1, 1 with influenza A. Three regions
reported more than 10% of cases: Trent (784 cases),
Yorkshire (723), and W
eMidlands
(502). Three thousand
four hundred and ninety patients (94%) were aged under
5 years.
Rhinovirus
: 7
patients had bronchiolitis, 1 had pneumonia,
and 1 had croup. Five patients were immunocompromised:
2 with leukaemia, 2 after organ transplants,1 whose
underlying condition was not stated. M 11m died. Four
regions reported more than 10% of cases: Northern (14
cases), Trent (10), S Western (6), and Mersey (6). Thirtyone
patients (74%) were aged under 5 years.
Number of reports received Total Average for
reports weeks 48-52
Laboratory reports 48/95 49/95 50/95 51/95 52/95 48-52/95 (last
5 years)
Chlamydia
11 17 13 8 12
61 NA
Coxiella burnetii
– 3
1 1 4 9 6
Legionella
2 2 1 3 9 17
15
Mycoplasma
pneumoniae
13 20 13 21
12 79 186
NA not available.
Chlamydia
(respiratory
infection): 35 patients had
pneumonia. Seven patients had contact with birds:
cockatiels 2 (in one case bird died), parrot 1 (bird died),
unspecified 4, including 1 who had unspecified animal
contact also. M 74y with pleurisy.
Coxiella burnetii
:
3 patients had pneumonia. M 18y after
six months in Kenya.
Legionella
: 15
patients (12 males aged 25 to 86 years,
Vol 6 No 1
Communicable
Disease Report 5 Jan 1996
3
including M 86y who died, and 3 females aged 48 to 69
years) had pneumonia; 2 had non-pneumonic infections
(M
e82y
who died and F 14y). Six cases were associated
with travel: Spain 3, Belgium and France, Italy, Turkey,
one each. One infection was acquired in hospital.
Mycoplasma pneumoniae
:
40 patients had pneumonia.
M
e5y
suffered respiratory arrest; Me12y
with Stevens-
Johnson syndrome; M 67y had concurrent infection with
influenza A; F 53y after splenectomy. Two regions reported
more than 10% of cases: S Western (10 cases) and
W
eMidlands
(9). Twenty-six patients (33%) were aged
under 10 years.
Staphylococci
S. aureus
672 3 24 332
675 (93)* 6388
Coagulase negative 288 2 8 41 290 3378
Streptococci
group A 29 1 1 7 30 461
group B 53 4 24 14 57 739
group C & G 34 – 1 21 34 448
enterococci 233 4 8 111 237 2174
a
- and non-haemolytic 125
– 6 40 125 1414
S. pneumoniae
388 18 6
215 406 3872
No. of reports received Age Total Cumulative
CSF only or reports total
Laboratory reports blood only CSF & blood <1m
³65y
48-52/95 1995
* methicillin resistant strains of Staphylococcus aureus.
Bacteraemia
Staphylococci
:
S. aureus
:
139 patients with intravascular (IV) lines, 26 of
whom were receiving haemodialysis and 6 total parenteral
nutrition (TPN); 10 were intravenous drug users; 9 had
endocarditis; 32 had septic arthritis; 5 had urinary tract
infection (UTI) or had undergone genital tract surgery; 16
had prosthetic heart valves or pacemakers; 11 had received
vascular grafts.
Three hundred and seventy-eight methicillin resistant
strains were reported (including 93 blood isolates):
Yorkshire 27 (1); Trent 13 (4); E Anglia 2 (2); NW Thames
19 (6); NE
eThames
27 (27); SW Thames 8 (8); SE Thames
11 (10); Wessex 69 (2); Oxford 23 (1); W Midlands 20 (20);
Mersey 20 (2); N Western 4 (1); S Western 12 (0);
Wales
e123e(9).
Coagulase negative
:
21 patients had polymicrobial
infection; 13 with IV lines were receiving TPN; 11 had
endocarditis. Premature M 11d receiving peritoneal dialysis
died; M 42y after heart, lung, and liver transplant; M 58y
after renal transplant; F 69y with renal failure, who died,
and 2 patients with peritonitis were all receiving continuous
ambulatory peritoneal dialysis (CAPD).
Also reported: F 26y (vaginal isolate).
Streptococci
:
group A
: 5
patients (2 males, 3 females) aged 3 to 95 years
all had skin infection, including M 53y who died (necropsy
specimens) and F 33y with necrotising fasciitis
.
group B
: 10
neonates and 6 maternal blood isolates (2 with
IV lines) 2 patients with skin infection, F 85 years died.
Also reported: F 86y with septic arthritis (joint aspirate
isolate).
group C
, 3 and
group G 15:
F 27y receiving cytotoxic
chemotherapy and 6 females aged 80 to 91 years all had
skin infection; M 88y with pneumonia and F 81y with
septicaemia both died; 2 patients with IV lines; 2 with
septic arthritis.
enterococci
: S.
bovis 5, including 2 patients
with
endocarditis.
S.
faecalis 75 (age range 1 month
to 85 years):
13 patients had polymicrobial infection. Six patients died,
including M 3y with leukaemia; 19 had IV
elines;
4 were
catheterised; 6 after biliary tract surgery; M 75y with
ventriculoperitoneal shunt; 3 with endocarditis.
S.efaecium
26: 4 patients had polymicrobial infection. One patient
died; 7 had IV lines, including 1 receiving TPN and 2
haemodialysis; 1 had endocarditis.
S.
gallinarum 1.
a
- and non-haemolytic:
S. acidominimus 1;
S. cremoris 1;
S.
emilleri
22; S.
mitior 2; S.
mitis 12; S.
mutans 2; S.
salivariuse2;
S. sanguis
17.
Four patients had polymicrobial infection.
Three were immunocompromised and one was receiving
haemodialysis. Twenty-one patients had endocarditis,
including M 45y with dental and brain abscesses, F 33y (an
injecting drug user), and F 76y with a prosthetic heart
valve. Ten had undergone biliary tract surgery; 4 had IV
lines, including M 65y with leukaemia. Another patient
had leukaemia and one died in utero.
Also reported:
S.
sanguis 1: prosthetic joint
aspirate.
S. pneumoniae
:
4 infants (aged less than 1 year) and 14
children aged 1 to 4 years. One hundred and sixty-one
patients had pneumonia, including 3 infants, 1 of whom
died, and 11 children aged under 5 years (5 males, 6
females). Nineteen patients were immunocompromised.
Also reported: 2 patients (joint aspirate isolates).
Meningitis ( all cerebrospinal fluid (CSF) isolates unless
otherwise stated)
Staphlyococci
:
S. aureus
:
F 37y with ventricular drain.
Coagulase negative
:
M 19y and M 40y both with CSF
shunts.
Streptococci
:
S. mitis
:
M 8y with hydrocephalus and CSF shunt died
(blood isolate also).
S. pneumoniae
:
M 70y with otitis media who died, and
M
e73y
(both blood isolates only).
Bacteraemia and bacterial meningitis, England and Wales:
laboratory reports, weeks 48 – 52/95
CDR
5 Jan 1996 Vol 6 No
1 Communicable Disease Report
4
Registered as a newspaper.
Data are for England and Wales only, unless otherwise stated.
Weekly numbers are provisional and should not be used to indicate trends.
Staphylococci
S. aureus
672 31 6 14
139 9 7 (2) 10 (2)
Coagulase negative 288 – – – – – – –
Streptococci
group A 29 1 – – – – – –
group B 53 1 – – 2 – – –
group C & G 34 2 – 1 2 – 1 (–) –
enterococci 233 1 – – 26 – 3 (–) –
a
- and
non-haemolytic 125 2 – – 5 – 21 (1) 2 (1)
S. pneumoniae
388 1 –
1 – – – –
Age Endocarditis IVDA
Total Acute Intravascular Pace- (with (with
Laboratory reports bacteraemia bone/joint <15y
³65y
lines makers prostheses) endocarditis)
Unusual infections (all blood isolates unless otherwise stated)
Actinomyces naeslundii
:
male, age not stated (surgical
wound isolate).
Aerococcus viridans
:
F 59y had undergone endoscopic
retrograde cholangiopancreatography.
Agrobacterium radiobacter
:
F 22y with leukaemia and
F
e42y
with renal failure were both immunocompromised
with IV lines.
Bacillus sp
2:
B. cereus,
M 25y (surgical wound isolate).
B.
elicheniformis,
neutropenic F 62y with Crohn’s disease.
Branhamella catarrhalis
3:
M 67y with mesothelioma and
pneumonia, who died; F 2y with chest infection; F 78y.
Capnocytophaga sp
:
M 12y.
Corynebacterium sp
7:
C. haemolyticum,
M 54y with ascites
(skin/wound isolate).
C.
jeikeium (JK), F 57y with
neutropenia.
Corynebacterium
sp 5: M 18y; M 18y and
M
e31y
both with leukaemia; M 64y and F 66y both with
neutropenia.
Erwinia sp
:
M 45y receiving haemodialysis (Staphylococcus
epidermidis
also
isolated).
Flavobacterium sp
:
M 1y.
Gemella haemolysans
:
F 91y with pneumonia.
Hafnia alvei
2:
F 31y; F 73y with myelofibrosis and cellulitis.
Kluyvera sp
2:
F 66y; F 70y.
Leptotrichia buccalis
:
F 51y with acute myeloid leukaemia.
Moraxella sp
:
patient 1y, sex not stated.
Propionibacterium acnes
:
M 39y with AIDS; M 49y with
endocarditis.
Vibrio alginolyticus
:
M 6y (outer ear isolate).
Communicable disease –are we ‘getting better’?
The Chartered Institute of Environmental Health is holding its
15th annual one day conference on 21 February 1996 at the
Dartford campus of the University of Greenwich. Topics include
the prevention and control of food poisoning, hepatitis,
control of communicable diseases at ports, and fitness to work.
The conference fee is £68. Please contact the conference
secretary for further details: Mr Dick Langridge, 1 The Heath,
South Tankerton, Kent, CT5 3HJ (tel 01227 763763, ext 4526
or 01227 264340).
Helicobacter pylori
update
A seminar on
Helicobacter
pylori, convened by the PHLS
and Association of Medical Microbiologists, will be held in the
lecture theatre, Central Public Health Laboratory, at 1330 on
26 April 1996. It will cover sources and typing of
H.
pylori,
pathogenic mechanisms and host defences, diagnosis, the
epidemiology of infection within and beyond the stomach, and
management of the infection. Further details and an application
form may be obtained from Professor C Roberts, PHLS
Headquarters, 61 Colindale Avenue, London, NW9 5DF. Please
enclose a stamped addressed envelope.
Occupational transmission of HIV
A new edition of
Occupational
transmission of HIV – summary of published reports now
available summarises reports
published to November 1995 that relate to occupational
transmission or acquisition of HIV infection, and updates of the
1993 edition. The document also provides a comprehensive list
of references. Single copies are available on request from
the hepatitis section at the PHLS Communicable Disease
Surveillance Centre (tel 0181 200 6868, ext
e3402/3404).