Ascaris lumbricoides
roundworm-Largest nematode- Loefflier’s syndrome- Found in soil and vegetation- Unfertilized egg, elongated and not mamillated- Fertilized egg, rounded and mamillated sometimes decorticated- Diagnostic stage, fertilized egg in feces or unfertilized egg and adult in feces- Infective stage, the fertilized egg that is ingested
Ascaris lumbricoides is a roundworm that commonly infects humans. It is one of the largest intestinal parasites, measuring up to 30cm in length. Ascaris lumbricoides infection is spread through ingestion of contaminated food or water, or by coming into contact with contaminated soil or feces.
Symptoms of Ascaris lumbricoides infection include abdominal pain, vomiting, diarrhea, and weight loss. In severe cases, the worm can cause intestinal blockage, appendicitis, or even invade other organs. Diagnosis of Ascaris lumbricoides infection is usually made through identification of worm eggs in stool samples.
Treatment for Ascaris lumbricoides infection typically involves anthelmintic drugs, such as albendazole or mebendazole, which kill the adult worms and their eggs. Prevention of Ascaris lumbricoides infection involves practicing good hygiene, such as hand washing and proper disposal of feces, and ensuring that food and water are adequately cooked or purified.
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