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Figure 2 | Veterinary Research

Figure 2

From: Immunity raised by recent European subtype 1 PRRSV strains allows better replication of East European subtype 3 PRRSV strain Lena than that raised by an older strain

Figure 2

Body temperature and respiratory disease scoring after challenge. Lines represent the mean value in each group. Dotted line gives the mean values of the control group. Temperatures of ≥39.5 °C were considered as fever (dashed line). Respiratory disease scores ranged from 0 to 6: 0 = normal; 1 = mild dyspnea and/or tachypnea when stressed; 2 = mild dyspnea and/or tachypnea at rest; 3 = moderate dyspnea and/or tachypnea when stressed; 4 = moderate dyspnea and/or tachypnea at rest; 5 = severe dyspnea and/or tachypnea when stressed; 6 = severe dyspnea and/or tachypnea at rest. Asterisk represents statistically discernible differences from the control (p < 0.05).

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Veterinary Research

ISSN: 1297-9716