Kingdom of Bones by James Rollins

When a strange illness is shows up in the Congo interior that puts people in a near comatic state yet turns animals into rabid aggressors. Sigma is called in. Following clues from a early missionary, Gray tries to get to the origin of the virus while the rest of the team investigate an evil billionaire who wants to use the pandemic to steal more resources from the country.

As with all of Rollin’s stories, the pages turn themselves with blistering speed and are filled with both historic and scientific facts in understandable terms. Very satisfying read!