New Delhi, June 25: An upgraded version of the air passenger health self-declaration portal Air Suvidha has been launched to enhance public health surveillance amid the Ebola outbreak in certain parts of Africa. The civil aviation ministry and the Delhi airport operator DIAL on Thursday launched Air Suvidha 2.0. Developed in collaboration with the Directorate General of Health Services (DGHS) unde the health ministry, the portal enables International arriving passengers to submit a mandatory online health self-declaration.