I will add one more fact..... Once those buffalos are killed, theirs meat are not cleaned good. We can see those people cleaning their meats with dirty water ( Sometimes in the bank of Bagmati and Bisnumati river.) Buff Momo has resulted more than 500 deaths in Nepal everyyear because of the disease founf in the meat. People who eat momo from those contaminated meat, their brain has found being affected by the tapeworm which is life threatening dangerous.