Director of Health Services Dr R.L. Saritha said the condition of the afflicted persons remained unchanged.
Necessary protective gears, including masks and gloves, have been provided to the hospital staff.
Earlier, cases of Nipah virus were reported from Siliguri in 2001 and Nadia in 2007 in the eastern state of West Bengal and around 47 deaths were reported. Two people, who died of Nipah infection, had undergone treatment at this hospital.
Large-scale awareness campaigns are also being held in the two districts.
The two new Nipah cases in Kerala take the total number of confirmed cases to 17, Kozhikode district medical officer V. Jayashree told Reuters.
Following the death of a superintendent of Kozhikode district court complex due to Nipah, the district bar association asked the collector to stop the functioning of the district court for the time-being.