While seven persons died in Jorhat Medical College and Hospital (JMCH), six others passed away at Jorhat Christian Medical Centre (JCMC), Rahman said.
Among those who have tested positive, 18 are admitted in JMCH, two at JCMC while two others are undergoing treatment at two private nursing homes here, officials here said.
Of these 22, four were minors and five women and all are residents from the district's rural areas.
The situation was being closely monitored and blood samples collected to ascertain whether there were more cases of JE in the district.
Spraying of DDT and fogging have been initiated in over 45 villages in and around the Jorhat district.