Figure 1

Seropositivity and PCR positivity according to cat age. Seropositivity significantly increased with cat age according to the following equation: Seropositivity = −0.069 + 0.072 * log(Age), P = 0.011, R² = 0.91. Conversely, PCR positivity significantly decreased with cat age according to: PCR positivity = 0.499 − 0.083 * log(Age), P = 0.007, R² = 0.93.