Urgent call for blood in Bali

Just got an sms form a friend who says that Swiss national Jon P. Zurcher is in Denpasar’s Sanglah hospital with dengue fever. He needs blood type A rhesus negative.

I’m not a medical expert so don’t have much to add, other than dengue is around in Bali as it is in other parts of the country.
If you are a tourist or expat reading this and you think you can help Mr Zurcher, either go to Sanglah hospital (take a taxi) or contact Ayip (0361) 481906, or Yudha 081 558010311.
Thanks