Influenza situation in the Eastern Mediterranean Region /2018 (from 29/07/2018 to 04/08/2018)

Source of data: EMFLU Network and FLUMART

Figure 1. Number of positive influenza cases and influenza positivity rate per week, 2017-2018

Number of positive influenza cases - 2017 Number of positive influenza cases - 2018 Percentage of positive cases (%) - 2017 Percentage of positive cases (%) - 2018 250 100

90

200 80 70 150 60 50 100 40 30

50 20

Percentage of positive cases (%) cases of positive Percentage Number positive of influenza Number cases 10

0 0

W01 W02 W03 W04 W05 W06 W07 W08 W10 W11 W12 W13 W14 W15 W16 W17 W19 W20 W21 W22 W23 W24 W26 W28 W29 W31 W35 W36 W37 W39 W40 W43 W44 W51 W09 W18 W27 W32 Epi week Figure 2. Percentage of circulating virus type by positive influenza cases

W40/2017 - W31/2018 Last 4 weeks

Flu A (H1N1)pdm09 Flu A (H3N2) Flu A (Not-subtyped) Flu B Flu A (H1N1)pdm09 Flu A (H3N2) Flu A (Not-subtyped) Flu B

13%

26% 9%

2% 11% 57% 67% 15%

Table 1. Type and Number of influenza viruses detected from W40/2017 to W31/2018 and during last four weeks

W40/2017-W31/2018 Last 4 weeks Virus type Number (%) Number (%) Flu A (H1N1)pdm09 13683 (57) 132 (67) Flu A (H3N2) 3514 (15) 22 (11) Flu A (Not-subtyped) 437 (2) 17 (9) Flu B 6202 (26) 26 (13) Total 23836 197

1 Figure 3. Comparison of respiratory pathogens detected from tested specimens by last 12 weeks W31/2018 Flu A (H1N1)pdm09 Flu A (H3N2) Flu A (Not-subtyped) Flu B 200 180 160 140 120 100 80 60 40

Number of positive influenza cases influenzapositiveof Number 20 0 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 2017 2018 W20 W21 W22 W23 W24 W25 W26 W27 W28 W29 W30 W31

Figure 4. Age group distribution of influenza cases by virus type in the EMR from W40/2017 to W31/2018

Flu A (H1N1)pdm09 Flu A (H3N2) Flu A (Not-subtyped) Flu B 1200

1000

800

600

400

200

0 Less than 2 3 to 5 6 to 15 16 to 50 51 to 65 More than 65 Age group Number of positive influenza cases influenza positive of Number Table 2. Reported cases by country W01-W31/2018 Positive cases Number of Tested cases Infuenza positive cases Flu A Flu B Country enrolled Number (%) Number (%) cases Flu A Flu A (Not- Flu A (H3N2) (H1N1)pdm09 subtyped) Number (%)

Afghanistan 1840 1806 (98) 140 (8) 42 (30) 52 (37) (-) 46 (33) Bahrain 441 429 (97) 116 (27) 51 (44) (-) 13 (11) 52 (45) Egypt 7628 7628 (100) 1530 (20) 765 (50) 227 (15) 2 (0) 536 (35) Iran (Islamic Republic of) 6326 6326 (100) 636 (10) 217 (34) 159 (25) (-) 260 (41) Iraq 1200 1200 (100) 277 (23) 202 (73) 8 (3) (-) 67 (24) Jordan 1334 1334 (100) 249 (19) 167 (67) 3 (1) 2 (1) 77 (31) Kuwait 5518 5518 (100) 1087 (20) 309 (28) 108 (10) 4 (0) 666 (61) Lebanon 573 573 (100) 119 (21) 37 (31) 34 (29) 3 (3) 45 (38) Morocco 1033 1033 (100) 272 (26) 48 (18) 102 (38) (-) 122 (45) occupied Palestinian territory 1222 1222 (100) 270 (22) 241 (89) 6 (2) (-) 23 (9) Pakistan 2748 2748 (100) 799 (29) 511 (64) 231 (29) (-) 57 (7) Qatar 22115 22115 (100) 4009 (18) 1755 (44) 620 (15) 131 (3) 1503 (37) Saudi Arabia 4628 4399 (95) 529 (12) 84 (16) (-) 170 (32) 275 (52) Syrian Arab Republic 83 83 (100) 22 (27) 10 (45) (-) 3 (14) 9 (41) Oman 2525 2380 (94) 335 (14) 100 (30) 44 (13) (-) 191 (57) Sudan 62 (-) (-) (-) (-) (-) (-) Tunisia 1213 1213 (100) 313 (26) 213 (68) 81 (26) (-) 19 (6) Yemen 368 (-) (-) (-) (-) (-) (-) Total 60857 60007 (99) 10703 (18) 4752 (44) 1675 (16) 328 (3) 3948 (37)

Published by the Infectious Hazard Management (IHM) unit, World Health Organization (WHO) Eastern Mediterranean Regional Office (EMRO), Cairo, Egypt. For Correspondence: Tel. + 20-2-22765492, Fax + 20-2-2765456. E-mail: [email protected] Influenza monthly situation updates are available at: http://www.emro.who.int/health-topics/influenza/regional-situation-update.html

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