The first president of Kazakhstan, Nursultan Nazarbayev, who stepped down from the position last year after nearly three decades in power, has tested positive for the coronavirus.   A statement on his official website made the announcement on Thursday.   “Currently, the First President of Kazakhstan is in self-isolation. Unfortunately, the last test… for the coronavirus infection showed a positive result. There is no cause for concern,” the statement said.   The statement said that Nazarbayev is “continuing to work …