3rd dead cub

Now the 3rd cub has died and NTCA is going to investigate the "actual cause of death". This is not the first time a tiger's death is going to be investigated. They come Everytime do some time pass in the park and submit report stating that tiger died of natural cause or they agree with the reports. Same thing happened with B-2 death. It was not investigated properly by crime bureau. We all need to report this to PETA and file RTI (Indians) demanding the right to investigate the cause of death and why these forest officials used to take away dead body of animals hunted by other tigers. Is Parvoviruse infection is due to contamination of meat by saliva of other dogs?