The Japanese (Specifically anime) Cold:
In most countries a Cold is nothing, you just sneeze a bit and feel a bit sick but then get on with your life, however, the Japanese Cold is very different. Some Doctors have worked out that due to the massive amount of toxicity and cancer in the anime fanbase this is transposed onto the poor innocent people of Japan by amplified sickness making them all infinitely more ill. Some officials have said that the Japanese cold could be similar to Stage 4 Terminal Cancer, this makes a lot of sense bearing in mind that the cause of this phenomenon is how cancerous the community is, shit, some could even say that the anime fandom is just a literal representation of cancer as it is a tumor upon the Earth