Final answer:
Animal viruses infect hosts through various interactions, causing acute or chronic infections, including the potential to cause cancer.
Explanation:
Animal viruses are viruses that infect animals by entering their hosts through various virus-host cell interactions, causing a range of infections. These infections can be acute, with a brief period of infection, or chronic, where the infection persists and may lead to chronic symptoms or even be asymptomatic. Oncogenic viruses in animals have the potential to cause cancer by disrupting the host cell cycle regulation.
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