VHD is Viral Hemorrahagic Disease, RHD is Rabbit Hemorrahagic Disease they are one and the same, simply explained would be to say that rabbits that pick up this virus bleed internally, a common cause of death is that the rabbit will drown in it's own blood when it gets into their lungs. It affects rabbits very quickly and is highly contageous, you will sometimes see blood on the rabbits nose, ears, rear end etc.
A bit like when they have myxi they will be huddled up, lethargic and in great pain / discomfort, some rabbits can survive myxi they cant shrug this off.
On a brighter note it