What generally happens to the immune response of animals infected with Sendai Virus?

The immune response of animals infected with Sendai Virus typically becomes weakened, which significantly affects their overall health. Sendai Virus is known to suppress immune function, making the host more susceptible to secondary infections and other health complications. This immunosuppression is particularly concerning in laboratory settings, where animals may be exposed to various pathogens or stressful conditions.

Increased vulnerability can lead to poor health outcomes, reduced longevity, and potentially higher mortality rates in infected animals. Understanding the implications of such a viral infection is crucial for maintaining animal welfare and ensuring the reliability of research data obtained from these animals, as stressed or ill subjects can yield inconsistent experimental results. In contrast, the other responses do not accurately portray the consequences of Sendai Virus infection on the immune system and its broader health impacts.