Africa: Weather data may predict cholera outbreaks

Public health officials may be able to forecast cholera outbreaks months in advance by looking at temperature and rainfall data, according to a study. Researchers looked at cholera outbreaks in Zanzibar, Tanzania, and found that they correlated with increases in temperature and rainfall. They calculated thata one degree Celsius increase - from 23 to 24 degrees Celsius - was followed by a doubling of cholera cases four months later.