DAMASCUS, Syria—Syrian President Bashar Assad and his wife have tested positive for the coronavirus, the president’s office said Monday, with both having only mild symptoms of the illness. In a statement, Assad’s office said the first couple did PCR tests after they experienced minor symptoms consistent with the COVID-19 illness. It said Assad, 55, and his wife Asma, who is 10 years younger and announced her recovery from breast cancer in 2019, will continue to work from home where they will isolate between two to three weeks. Both were in “good health and in stable condition,” it added. Syria, which marks 10 years of war next week, has recorded nearly 16,000 virus cases in government-held parts of the country, including 1,063 deaths. The pandemic, which has severely tested even developed countries, has been a major challenge for Syria’s health care sector, already depleted by years of conflict. Syria began a …