Haifa University has conducted a preliminary study that has identified a correlation between the exceptionally hot and dry winter of northeast Brazil and the recent outbreak of the Zika virus which has led to numerous of birth defects.
The study was led by Dr. Shlomit Paz of the Department of Geography and Environmental Studies at the University of Haifa and Professor Jan Semenza of the Stockholm-based European Center for Disease Prevention and Control (ECDC).
The main findings of the provisional research contradict the conclusions drawn by the World Health Organization (WHO), which declared a state of emergency last week over the outbreak of the virus.
According to the WHO, the virus is associated with heavy rains in parts of Central and South America as a result of El Nino, a phenomenon that involves a substantial increase in Pacific Ocean water temperatures.
Preliminary research led by Haifa University, however, indicates that the relevant factor associated with the virus is in fact the wave of exceptionally hot and dry conditions, which have reached record levels in the latter half of 2015 in northeastern Brazil where the Zika virus has broken out.
The research argues that the outbreak is not attributable to heavy rains rather it can be attributable to another factor involving climate change and global warming patterns that have affected the planet over recent decades.