The study design and analysis controlled for influence of potentially confounding trends, such as improvement of day-care carriage and decreasing prevalence of smoking during the study period.
On 3 July the Cuban Ministry of Health confirmed an outbreak of cholera in the south-western city of Manzanillo. It is the first time in almost 150 years that an outbreak of cholera is reported in the island.
In recent years there have been a series of arguments and findings suggesting that Statins (HMG-CoA reductase inhibitors) which used widely to lower cholesterol levels may also be important in reducing the risk associated with severe infective conditions.