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What is the most common endoparasite found in puppies and kittens?

  1. Roundworm

  2. Tapeworm

  3. Heartworm

  4. Hookworm

The correct answer is: Roundworm

Roundworms are considered the most common endoparasite in puppies and kittens due to their prevalence and transmission. These parasites can be transmitted from the mother to her offspring either through the placenta during gestation or through the milk during nursing. The life cycle of roundworms is also notably efficient; eggs shed in the feces of infected animals can survive in the environment for long periods, making transmission to young animals more likely. Puppies and kittens, having immature immune systems, are particularly susceptible to these infections. The presence of roundworms can lead to several health issues, including poor growth, malnutrition, and intestinal blockages. Identifying and treating roundworm infestations promptly is critical in young animals to ensure their healthy development. The other endoparasites listed, while potentially significant, do not match the frequency and impact of roundworms in the early life stages of puppies and kittens.