( CNN ) -- A 14-year-old Saudi girl is the latest confirmed case of the sometimes deadly MERS virus , the WHO said Wednesday . To date , the World Health Organization has been informed of 54 cases , including 30 deaths . The Saudi health ministry told the agency that the girl became ill on May 29 . She is in stable condition . Your MERS questions answered . Middle East respiratory symptom coronavirus , or MERS , acts like a cold virus and attacks the respiratory system , the U.S.-based Centers for Disease Control and Prevention has said . But symptoms , which include fever and a cough , are severe and can lead to pneumonia and kidney failure . Coronaviruses cause illnesses ranging from the common cold to SARS , or Severe Acute Respiratory Syndrome , as well as a variety of animal diseases . 5 things to know . Health officials do not yet know much about how the newly discovered virus spreads , which makes it hard for scientists to prevent infections , Chan said . The WHO is calling for the world to pull together its resources to study and tackle the virus . Deadly MERS-CoV virus spreads to Italy . Opinion : Why MERS virus is so scary .
The girl is in stable condition . Police say the suspect was wearing a black hooded sweatshirt and blue jeans.