Rift Valley Fever cases have hit 80 in Wajir County since the outbreak on June 7 this year.
In an interview with the Nation, Wajir Health minister Abdihakim Billow, said that the death toll remains at six.
New cases have been reported in Wajir East and Tarbaj but the hotspots are in Eldas and Wajir West.
Four patients are currently receiving treatment at Wajir Referral Hospital and Eldas dispensary.
Mr Billow said hundreds of camels, sheep and goats have died since the disease outbreak.
No case involving cattle has been reported since the outbreak.
The county extended a ban on meat and milk to July 5 as it seeks to contain the disease.
The county has also set up four isolation centres in the hotspots, including at Wajir Referral hospital and Basir in Eldas sub-County.
Isiolo, Marsabit, Mandera and Meru counties have been on high alert after the virus spread.
According to the Ministry of Health's disease surveillance and response unit at least 26 people have died from the disease.