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. 2008 Dec 4;38(6):1487–1496. doi: 10.1093/ije/dyn260

Table 1.

Summary of Studies included in Review

Ref. City Country Latitude Altitude Avg. yearly rainfall (cm) Range of monthly avg. rainfall (cm) Yearly avg. Temp. (C) Range of monthly avg. temp. (C) Period of study Total # RV seen Ages included Setting Temp Rain RH Peak Rotavirus season as noted by authors
23 Dhaka Bangladesh 24N 9 197 2–39a 26 19–29 7/89–6/90 756 All ages Hospital + + Peak from July to January
24 Dhaka Bangladesh 24N 9 197 2–39a 26 19–29 1/90–12/93 1561 <5 Hospital Distinct peak in cool dry months
25 Dhaka Bangladesh 24N 9 197 2–39a 26 19–29 12/79–11/80 635 All ages Hospital Detection most common in winter
26 Matlab Bangladesh 23N 10 235 n/a 25 n/a 1/87–5/89 898 All ages 2 diarrhoea treatment centers +1 hospital * Peaks in the dry winter months and coinciding with a major flood
27 Hong Kong China 22N 24 218 2–39 23 16–29 8/94–7/95 130 <5 Hospital * Peak in the cooler, drier months
28 Hong Kong China 22N 24 218 2–39 23 16–29 1/87–12/96 2281 All ages Hospital * Peak in winter
29 Hong Kong China 22N 24 218 2–39 23 16–29 4/01–3/03 1764 <5 4 hospitals * Clear winter seasonal peak; infrequently identified in the summer season
30 Hong Kong China 22N 24 218 2–39 23 16–29 6/83–5/84 256 <5 Hospital * Peaked during the winter months
31 Jeddah Saudi Arabia 22N 11 4.5 0.1–2a 28 23–32 3/88–12/92 523 Infants & young children Hospital +* Increase in incidence in the cooler months
32 Mexico City Mexico 19N 2233 63 1–12a 17 13–19 12/76–1/78 62 <5 2 hospitals More frequent in autumn than winter
33 Mexico City Mexico 19N 2233 63 1–12a 17 13–19 12/99–2/01 76 <2 5 hospitals * Marked increase in fall-winter
34 Pune India 18N 559 70 0.1–17.5 24 20–29 7/92–6/96 266 <5 Hospital * More common in cooler months
35 Yangon Myanmar 17N 28 (147 days) 1–28 27 25–31 1/02–12/03 923 <5 Tertiary care hospital * Cool, dry season
36 Vellore India 13N 204 127 n/a 28 n/a 8/83–7/85 163 <3 Hospital + Peak in winter and SW monsoon season
37 Coro Venezuela 11N 17 41 1–7 28 27–30 12/84–12/87 115 <5 Hospital * +* Peaks in cooler months
38 Caracas Venezuela 10N 834 (105 days) 2–14 23 21–24 11/75–12/76 121 <5 Hospital * * More frequent November - February
39 San Jose Costa Rica 10N 920 179 1–30a 20 18–21 4/76–3/77 49 <8 Hospital + outpatient clinic + Higher in dry season
40 Addis Ababa Ethiopia 9N 2354 121 1–28 16 15–18 12/83–12/84 109 <3 Hospital +* * Year-round
41 Nairobi Kenya 1S 1623 75 1–16 19 17–21 5/75–4/76 66 All ages Hospital + Lowest during the long rains
42 Nairobi Kenya 1S 1623 75 1–16 19 17–21 12/81–6/83 133 <2 Hospital +* * Peak in times of dry, hot weather & low relative humidity
43 Guayaquil Ecuador 2S 9 108 1–28 a 26 25–27 4/78–12/81 376 Infants & young children Hospital * * Detection rate higher in the dry season than the wet season
44 Yogyakarta Indonesia 8S 106 218 2–35 25 24–26 6/78–6/79 126 <12 Hospital +* * Decrease when moved from dry to wet conditions
45 Apia Western Samoa 14S 2 285 8–45 26 25–26 6/83–6/85 67 <2 Hospital + +* More common in the dry season
46 Lusaka Zambia 15S 1153 (60 days) 1–13a 21 16–25 1/92–12/92 256 <5 Hospital * Higher rate in the dry season
47 Minas Gerais Brazil 22S 939 150 N/a 18 n/a 1/98–12/98 80 <5 Hospital * * Peak in coldest driest month
48 Rio de Janeiro Brazil 23S 6 109 4–13 25 22–28 1/81–12/84 265 <5 Hospital * Peak in ‘winter’ or dry season

Sign of coefficient of slope of regression between monthly rotavirus incidicene and monthly tempeature (Temp), monthly rainfall (Rain) and relative humidity (RH) given in all cases where data was available.

aData not available for every month.

*Significant (P<0.05).