Table 1.
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).