The lions, an endangered species, are being vaccinated under intensive veterinary care and as per standard protocol, officials said Sunday.
CDV is considered a dangerous virus and had been blamed for wiping out 30 per cent population of African lions in East African forests.
"Vaccination of segregated #Lions under intensive veterinary care as per standard protocol started. Top national & International lion experts have been consulted. Government undertaking utmost care for lion safety," the Chief Conservator of Forest, Wildlife Junagadh, an official twitter handle of the Junagadha district forest department, said.
The Gir sanctuary falls under the Junagadha district forest department's jurisdiction.
A senior government official in Gandhinagar said only those lions which are in the forest department's captivity are being vaccinated at present.
Following the death of big cats, the forest department had captured 36 lions and shifted them to Jashadhar and Jamwala rescue centres in the Gir forest as a precautionary measure.
According to the last census conducted in 2015, the number of lions in the Gir sanctuary stood at 523.
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