The illness usually begins with a cough that can last for weeks to months -- which is seemingly resistant to antibiotics ...

Since she was also suffering from a severe upper respiratory infection, she could not be ... placing her on antibiotics and monitoring her carefully as “her frail body fought to recover.” ...

FORT WORTH, Texas — A 2-year-old dog ... of a severe upper respiratory infection, the medical team could not sedate Twiggy to further investigate the swelling. So, she was given antibiotics ...