/**
  * Remove disease.
  *
  * @param Request $request
  * @return \Symfony\Component\HttpFoundation\RedirectResponse
  */
 public function deleteAction(Request $request)
 {
     $this->check();
     $id = $request->get('id');
     $disease = new Disease();
     $disease->load($id);
     if ($disease->getId()) {
         $disease->delete();
         $disease->save();
     }
     return $this->redirectToRoute('disease_list');
 }