User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-6050823-20150329173428

The Magalas just keep on getting more and more interesting with their ecology plus now we talk about the Frenzy Virus!

Shagaru Magala spread a mist of the virus around their territory to prevent Gore Magala from molting properly. The mist contains some type of bacteria, different from the ones their juvenile form, that prevents them from molting properly. This bacteria has a fatal effect on Gore Magala and makes it molt halfway, Chaotic Gore Magala. This bacteria is parasitic in nature and slowly drains nutrition from any organisms it comes in contact with. The bacteria usually kills the organism it has come in contact, leaving behind the juveniles of the bacteria to grow in the dead body of the organism. The bacteria, while young, can't develop inside living organisms and can only develop inside their dead bodies.