PMC3881617_01
Mean monthly rainfall at Lwiro meteorological station and cases of Vibrio cholerae infection by month along the period (1992-2002)
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Looking at the data, it was observed that a seasonal pattern seemed to exist during the rainy season when lower minimum/maximum temperatures and lower total rainfall coincided with lower cases of cholera (Figs. 4-8). From 1992 to 2002, V.cholerae infections tend to peak during September to March periods during or immediately after rainfall peaks (Fig. 4).
Mean monthly rainfall at Lwiro meteorological station and cases of Vibrio cholerae infection by month along the period (2003-2011)
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Looking at the data, it was observed that a seasonal pattern seemed to exist during the rainy season when lower minimum/maximum temperatures and lower total rainfall coincided with lower cases of cholera (Figs. 4-8). Interestingly, from 2003 to 20011, the number of New cases of Cholera increased significantly (P<0.01) in Bukavu town (Figure-5).
Vibrio cholerae infection cases in Katana rural health zonal area and monthly rainfall at Lwiro meteorological stations along the period from 2002 to 2011
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Looking at the data, it was observed that a seasonal pattern seemed to exist during the rainy season when lower minimum/maximum temperatures and lower total rainfall coincided with lower cases of cholera (Figs. 4-8). Similarly trends were observed in a rural health zone (that is located at 45 Km far from Bukavu town) of South-Kivu province (Fig. 6).
Vibrio cholerae infection cases and the daily (min/maxim) temperature values at Lwiro meteorological stations along the period from 1992 to 2002
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PMC3881617_01_ijph-42-707f7.jpg
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Looking at the data, it was observed that a seasonal pattern seemed to exist during the rainy season when lower minimum/maximum temperatures and lower total rainfall coincided with lower cases of cholera (Figs. 4-8). The trends in minimum temperature and in maximum temperature were not in synchrony with cholera cases (Fig. 7) from 1992 to 2011 although there was a tendency for the maximum temperature to increase from 2002 to 2011 (Fig. 8).
Vibrio cholerae infection cases and the daily (min/maxim) temperature values at Lwiro meteorological stations along the period from 1992 to 2002
ijph-42-707f8.jpg
PMC3881617_01_ijph-42-707f8.jpg
f8-ijph-42-707
Looking at the data, it was observed that a seasonal pattern seemed to exist during the rainy season when lower minimum/maximum temperatures and lower total rainfall coincided with lower cases of cholera (Figs. 4-8).