 In benign infections found in some wild and captive African elephants , these viruses can affect either the skin or the pulmonary system . In the former case , it produces small pinkish nodules on the head and trunk in juveniles , which appear for a few weeks and then regress , suggesting an intermittently reactivated localized infection that mostly remains dormant . In the second case , it has been found in small white pulmonary nodules on necropsy of many asymptomatic adults . These are both characteristic of EEHV2 , EEHV3 and EEHV6 . 
