As Syria marks five full years of civil war this month, a new report claims that chemical weapons have been used at least 161 times through the end of 2015 and caused 1,491 deaths. It says such attacks are increasing, with a high of at least 69 attacks last year, and
14,581 people have been injured in all. The Syrian American Medical Society says its report released Monday is the most comprehensive listing of chemical weapons attacks in Syria so far. The US-based nonprofit, which supports more than 1,700 workers at over 100 medical centers in Syria, says the list is based primarily on the reports of medical personnel who have treated victims, aided by NGOs and other local sources.