Herpesvirus outbreaks are common in natural animal populations, but little is known about factors that favour herpesvirus infection and its consequences for the frigatebird nestlings. We found that the plasma concentration of haptoglobin was strongly associated with the infection status and could predict probabilities of survival. We also found that nestlings with clinical signs had lowerContinue reading “Plasma concentration of haptoglobin in frigatebird nestlings was strongly associated with herpesvirus infection”