👉 Mastigamoebids are a group of bacteria that can infect humans, causing infections such as pneumonia and meningitis. They primarily colonize the respiratory tract, particularly in the lungs, and spread through the air when they inhale droplets containing mucus and other pathogens. Mastigamoebids belong to the family Mastigomadae and are characterized by their large, flattened bodies that resemble a human nose or mouth.