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

[groupeF]): 49 had eye infections, 10 had bronchiolitis,

5ehad 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:

4ewith leukaemia, 5 after organ transplants, 1 with

Wegener’s granulomatosis, 1 with Addisonian crisis, 1ewho

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

(9ecases) 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,

1eafter cardiac surgery, 2 with cystic fibrosis, 1 with

congenital immunodeficiency. M 2m with osteomyelitis;

premature M 7m with hydrocephalus and Hirschsprung’s

disease; Fe3m 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 WeMidlands (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

(Me82y 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.

Me5y 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

WeMidlands (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); NEeThames 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);

Walese123e(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 IVelines; 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

Me73y (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

Fe42y 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

Me31y 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, exte3402/3404).