Dipylidiasis is a common tapeworm infection of dogs and cats caused by Dipylidium caninum. Humans become infected by accidental ingestion of dog or cat fleas that contain D caninum cysticercoids (larva). The risk of infection to humans is low. These fleas and lice are the intermediate host for D caninum.
Dipylidiasis is distributed worldwide, and human infection has been reported in Africa, Argentina, Australia, Chile, China, Europe, Guatemala, India, Japan, and the Philippines. Dipylidiasis does not appear to have a racial predilection. Dipylidiasis is most common in infants and in children younger than 8 years. The adult tapeworm develops in about 20 days; however, since most infections are asymptomatic, although some children with dipylidiasis may have intestinal disturbances.
Symptoms that appear include abdominal pain with or without diarrhea, loss of appetite, allergic manifestations (eg, pruritus, rash) may occur, increased irritability, intestinal obstruction is a rare complication of dipylidiasis.The RF's hookworm campaign in Mexico showed how science and politics play a role in developing health policies. It brought together government officials, health officials, public health workers, Rockefeller officials and the community. This campaign was launched to eradicate hookworms in Mexico.