PHE Influenza Surveillance graphs · 2019-11-07 · DataMart: Number and proportion of samples positive for influenza, by type, PHE Yorkshire and Humber 7 November 2019 Return to

PHE Influenza Surveillance graphs

• Influenza activity in the United Kingdom is monitored using a variety of surveillance systems. The National Influenza Report which interprets the data is published weekly.

• National and subnational outputs from the various surveillance systems are grouped according to the following categories:– Community influenza surveillance– Influenza-like illness GP consultation rates– Influenza-confirmed hospitalisations– All-cause mortality– Microbiological surveillance– Influenza vaccination

Influenza SectionImmunisations and Countermeasures DivisionCentre for Infectious Disease Surveillance and ControlPublic Health [email protected]

7 November 2019 → NEXT

https://www.gov.uk/sources-of-uk-flu-data-influenza-surveillance-in-the-uk

https://www.gov.uk/government/statistics/weekly-national-flu-reports-2018-to-2019-season

mailto:[email protected]

Community influenza surveillance

7 November 2019 Return to main menu

Number of acute respiratory outbreaks by institution, UK


0255075

100125150175200225250

40 44 48 52 4 8 12 16 20

Nu

mb

er

Week of report

Care homeHospitalSchoolOther2018/19 - total no. of outbreaks

Number of acute respiratory outbreaks by PHE Centre


Outbreaks reported in week 44

Cumulative number of outbreaks since week 40

PHE North East1 6

PHE North West1 25

PHE Yorkshire and Humber4 7

PHE East Midlands 3 16

PHE West Midlands2 15

PHE East of England6 44

PHE London0 4

PHE South East 220

PHE South West 623

Influenza-like illness GP consultation rates


RCGP ILI consultation rate, England


<12.7 Baseline threshold 12.7 to <24.1 Low 24.1 to <70.6 Medium

70.6 to <113.6 High 113.6+ Very high

0102030405060708090

100110120130140

40 44 48 52 4 8 12 16 20 24 28 32 36

ILI

rate

per

100,0

00

Week number

2010-11

2018-19

2019-20

GP ILI consultations in the UK for all ages with MEM thresholds applied

7 November 2019

*The Moving Epidemic Method (MEM) has been adopted by the European Centre for Disease Prevention and Control to calculate

thresholds for GP ILI consultations for the start of influenza activity (based on 10 seasons excluding 2009/10), in a standardised

approach across Europe. For MEM threshold values for each country, please visit: https://www.gov.uk/guidance/sources-of-uk-flu-data-

influenza-surveillance-in-the-uk#clinical-surveillance-through-primary-care .

Return to main menu

GP ILI consultation

rates (all ages)

Week number

40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4

England (RCGP) 4.3 5.0 5.5 6.2 4.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Wales 1.7 4.0 4.2 6.2 1.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Scotland 5.5 6.2 4.4 4.0 7.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Northern Ireland 3.9 4.8 4.6 5.1 6.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

https://www.gov.uk/guidance/sources-of-uk-flu-data-influenza-surveillance-in-the-uk#clinical-surveillance-through-primary-care

Influenza-confirmed hospitalisations


Weekly ICU/HDU influenza admission rate per 100,000 trust catchment population , England, since week 40 2019

7 November 2019Return to main menu

*The Moving Epidemic Method (MEM) has been adopted by the European Centre for Disease Prevention and Control to calculate thresholds for ICU/HDU

admission rates for the start of influenza activity (based on 6 seasons) in a standardised approach across Europe. For MEM threshold values, please visit:

https://www.gov.uk/guidance/sources-of-uk-flu-data-influenza-surveillance-in-the-uk#disease-severity-and-mortality-data

0

50

100

150

200

250

300

350

400

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

40 44 48 52 4 8 12 16 20

Nu

mb

er

of

ad

mis

sio

ns

Ad

mis

sio

n r

ate

per

100,0

00

Week number

Number of cases

Rate of hospital admission/100,000 (2019/20)

Rate of hospital admission/100,000 (2018/19)


Weekly ICU/HDU influenza admission rate per 100,000 trust catchment population by PHE Centre, North East, North

West and Yorkshire and Humber, since week 40 2019


0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20

Rate

of

ICU

/HD

U a

dm

issio

n p

er

100,0

00

tru

st

catc

hm

en

t p

op

ula

tio

n

Week number

2019/20 - North East

2019/20 - North West

2019/20 - Yorkshire and Humber

Weekly ICU/HDU influenza admission rate per 100,000 trust catchment population by PHE Centre, East Midlands, West

Midlands and East of England since week 40 2019


0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20

Rate

of

ICU

/HD

U a

dm

issio

ns p

er

10

0,0

00

tru

st

ca

tch

men

t p

op

ula

tio

n

Week number

2019/20 - East Midlands

2019/20 - West Midlands

2019/20 - East of England

Weekly ICU/HDU influenza admission rate per 100,000 trust catchment population by PHE Centre, South East, South

West and London, since week 40 2019


0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20

Rate

of

ICU

/HD

U a

dm

issio

ns p

er

10

0,0

00

tru

st

ca

tch

me

nt

po

pu

lati

on

Week number

2019/20 - South East

2019/20 - South West

2019/20 - London

Influenza confirmed ICU admissions (USISS mandatory) by age and influenza subtype, since week 40 2019


050

100150200250300350400450500550600

<1 1-4 5-14 15-44 45-64 65-74 75+

Nu

mb

er

Age group (years)

A(H1N1)pdm09 A(H3N2)

A unknown subtype A not subtyped

B

Weekly hospitalised influenza case rate per 100,000 trust catchment population , England, since week 40 2019


*The Moving Epidemic Method (MEM) has been adopted by the European Centre for Disease Prevention and Control to calculate thresholds for

ICU/HDU admission rates for the start of influenza activity (based on 6 seasons) in a standardised approach across Europe. For MEM threshold

values, please visit: https://www.gov.uk/guidance/sources-of-uk-flu-data-influenza-surveillance-in-the-uk#disease-severity-and-mortality-data

0100200300400500600700800900100011001200

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

40 44 48 52 4 8 12 16 20

Nu

mb

er

of

ad

mis

sio

ns

Ho

sp

italisati

on

rate

per

10

0,0

00

Week number

Number of casesRate of hospital admission/100,000 (2019/20)Rate of hospital admission/100,000 (2018/19)


Weekly hospitalised influenza admission rate per 100,000 trust catchment population by PHE region, since week 40 2019


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

40 42 44 46 48 50 52 2 4 6 8 10 12 14 16 18 20

Rate

of

ho

sp

italisati

on

/100,0

00

Week number

2019/20 - North 2018/19 - Midlands + East

2018/19 - London 2018/19 - South East

2018/19 - South West

Influenza confirmed hospital admissions (USISS sentinel) by age and influenza subtype, since week 40 2019


050

100150200250300350400450500550600

<1 1-4 5-14 15-44 45-64 65+

Nu

mb

er

Age group (years)

A(H1N1)pdm09 A(H3N2)

A unknown subtype B

All-cause mortality


Excess mortality (all causes) by week of death through the EuroMOMO algorithm in all ages, England


Excess mortality (all causes) by week of death through the EuroMOMO algorithm in all ages, PHE North of England


Excess mortality (all causes) by week of death through the EuroMOMO algorithm in all ages, PHE Midlands and East of

England


Excess mortality (all causes) by week of death through the EuroMOMO algorithm in all ages, PHE London


Excess mortality (all causes) by week of death through the EuroMOMO algorithm in all ages, PHE South of England


Microbiological surveillance


DataMart: Number and proportion of samples positive for influenza, by type, England


0

200

400

600

800

1000

1200

1400

0

20

40

60

80

100

40 44 48 52 4 8 12 16 20 24 28 32 36

Nu

mb

er

of

po

sit

ive s

pecim

en

s

Pro

po

rtio

n p

osit

ive

Week number (of sample)

Influenza A (n)Influenza B (n)Total influenza (%)2018/19 total influenza (%)

DataMart: Number and proportion of samples positive for influenza, by type, PHE North East of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19

Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluB (n) FluA (n)

Influenza A (%) Influenza B(%)

DataMart: Number and proportion of samples positive for influenza, by type, PHE North West of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19

Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluB (n) FluA (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE Yorkshire and Humber


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19

Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluB (n) FluA (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE East Midlands of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19

Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluA (n) FluB (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE West Midlands of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19 Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluA (n) FluB (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE East of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19

Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

os

itiv

e (

%)


FluA (n) FluB (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE London


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19

Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluB (n) FluA (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE South East of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19 Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

osit

ive (

%)


FluB (n) FluA (n)


DataMart: Number and proportion of samples positive for influenza, by type, PHE South West of England


0

50

100

150

200

250

300

350

400

450

500

0

10

20

30

40

50

39 43 47 51 3 7 11 15 19 Nu

mb

er

of

po

sit

ive s

am

ple

s

Pro

po

rtio

n p

os

itiv

e (

%)


FluB (n) FluA (n)


DataMart: Proportion of samples positive for RSV, by age group


0

10

20

30

40

50

60

70

80

40 43 46 49 52 3 6 9 12 15 18 21 24 27 30 33 36 39

Pro

po

rtio

n p

osit

ive

Week number

65+yrs 45-64yrs 15-44yrs

5-14yrs <5yrs

DataMart: Proportion of samples positive for other viruses


0

5

10

15

20

25

30

35

40

40 43 46 49 52 3 6 9 12 15 18 21 24 27 30 33 36 39

Pro

po

rtio

n p

osit

ive

Week number

RSV Rhinovirus

Parainfluenza hMPV

Adenovirus

Influenza vaccination


Seasonal influenza vaccine uptake in targeted groups, 2019/20, England


0

10

20

30

40

50

60

70

80

40 42 44 46 48 50 52 2 4

Vac

cin

e u

pta

ke (

%)

Week number

65+yrs<65yrs at riskAll pregnant women

2019/20 season indicated by bold lines, 2018/19 season indicated by fainter dashed lines

Seasonal influenza vaccine uptake in targeted groups, 2019/20, England


0

10

20

30

40

50

60

70

80

40 42 44 46 48 50 52 2 4

Vaccin

e u

pta

ke (

%)

Week number

2 years

3 years

2019/20 season indicated by bold lines, 2018/19 season indicated by fainter dashed lines

Links

• Sources of UK flu surveillance data:


• Weekly flu report





Documents

PHE Influenza Surveillance graphs · 2019-11-07 · DataMart: Number and proportion of samples positive for influenza, by type, PHE Yorkshire and Humber 7 November 2019 Return to