Zika Causes Fever and Viremia in Rhesus Macaques In the present study, to mimic the natural mosquito-biting route of zika, five adult rhesus macaques aged five years old were inoculated with 105 PFU of zika strain GZ01/2016. 1a outlines the timeline for clinical manifestations, sample collection, and necropsies. summarizes the experimental results from each animal. Within 10 days post-infection four out of five animals displayed fever axillary temperature N 38.9 °C with peak temperature of 40.1 °C The forehead temperature also increased upon infection in all inoculated monkeys Interestingly, fluctuant fever was observed in two animals between days 17 and 27 No additional or behavioral abnormalities were observed throughout the experimental period. Blood chemistry analysis and complete blood cell counts were performed at the indicated times. High levels of liver enzyme alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were observed These enzymes increased significantly at days 1 and 8 suggesting that liver dysfunction might be an early sign of infection. In addition, a sharp increase in creatinine CREA level was detected in zika-infected animals Some minor changes were observed in blood parameters in several animals, but the values remained within normal variation ranges Viremia is well documented as the marker for flaviviral replication in a replication. Blood was sampled daily for 10 days and every 3–5 days thereafter Plasma viremia was detected by zika-specific qRT-PCR in all tested animals. All animals developed viremia, and the mean viremia duration was 6.6 days. Peak plasma viremia occurred between days 2 and 5