Albania has registered four deaths related to the AH1N1 flu virus and the latest case being a 76-year-old lady from Lushnja, west Albania, Silvana Bala, chief doctor in the Sanatorium hospital, told media on Friday.

"The patient came to the hospital in a serious condition with insufficient lung function. She was immediately sent to our Reanimation, but the inadequacy of lung function caused the death after 8 hours in the late evening of Thursday," Bala said.

Meanwhile, at the Sanatorium hospital in the capital Tirana, everyday 80 to 100 urgent cases arrived with flu symptoms. At the moment in the Reanimation there are 10 serious cases, 3 with controlled respiration.

"AH1N1 is a virus that targets the respiratory system. When it affects people with poor immune systems, those who also suffer illnesses such as diabetes, cardiac diseases, or kidney disease, the virus easily causes serious complications, such as bilateral pneumonia," said the doctor.

Albanian Health Institute has been urging citizens to take flu vaccine and avoid overcrowded places.