What kind of worms can be transmitted from a cat to a human? - briefly
Worms that can be transmitted from cats to humans include Toxocara cati and Dipylidium caninum. These parasites are typically contracted through contact with contaminated soil or feces, leading to conditions such as visceral larva migrans in the case of Toxocara cati.
What kind of worms can be transmitted from a cat to a human? - in detail
Worms that can be transmitted from cats to humans are typically those that complete their life cycle in two hosts, known as intermediate and definitive hosts. Cats often serve as the definitive host for these parasites, while humans can become accidental or intermediate hosts. Here are some of the most common worms that can be transmitted from cats to humans:
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Toxoplasma gondii: This is a protozoan parasite that commonly infects cats, often through the consumption of infected rodents or birds. Humans can become infected by accidentally ingesting oocysts from cat feces, which are shed in the environment during the acute stage of infection in cats. Pregnant women and individuals with compromised immune systems are particularly at risk for severe complications if infected.
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Toxocara cati: Also known as roundworms, these parasites can be transmitted to humans through contact with contaminated soil or sandboxes where infected cat feces are present. Children are particularly vulnerable due to their tendency to play in such environments and put their hands in their mouths. Ingesting the eggs can lead to larval migration within the body, causing conditions like visceral larva migrans (VLM) or ocular larva migrans (OLM).
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Dipylidium caninum: Commonly known as tapeworms, these parasites are typically transmitted to cats through fleas. Humans, especially children, can accidentally ingest infected fleas while playing with infested pets or in contaminated environments. The larvae then develop into adult worms within the human intestine, causing symptoms such as abdominal discomfort and itching around the anus.
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Ancylostoma braziliense: Also known as hookworms, these parasites can be transmitted to humans through contact with contaminated soil or sand where infected cat feces are present. The larvae penetrate the skin and cause a condition called cutaneous larva migrans (CLM), characterized by itchy, serpentine tracks on the skin.
Preventive measures include regular deworming of cats, proper disposal of cat feces, hand hygiene after handling pets or soil, and avoiding contact with potentially contaminated environments. Pregnant women should be especially cautious around cats and their litter boxes to minimize the risk of infection from Toxoplasma gondii.