today , wherever we are, fardavan, the general director of blood transfusion in tehran province, says the cold weather and rains the sky in recent days has caused a significant drop in blood donation and the continuation of this procedure will definitely endanger the blood reserves, according to dr. chavar niaz. hundreds of patients in tehran are dependent on donated blood for thousands of people in the country. the capital of the weather and the rain of god's mercy during this week have minimized the unnecessary and even necessary traffic of the people. as you can see, the donor hall of vasal shirazi blood transfusion center is almost empty of blood donors. it is because of the cold weather these few days that the weather has been cold and the rains it had. country in days is the future because we already had a good donation. we are still accountable to the medical centers of our dear people, but if this procedure continues , then our reserves will definitely be at risk and this is worrying. we request our dear people not to leave the patients who are in urgent need of their blood al