"These favorable results provided sufficient guarantees to launch a vaccination campaign as early as autumn 2023," the farm ministry wrote on its website.
Black irises could be used as a likely indicator of prior infection with avian influenza.
The new study, which has not yet been peer-reviewed, studied virus samples taken from infected birds and mammals.
The last bird flu case reported in Israel was reported on January 19.
All coops within 10 kilometers of the outbreaks were placed on lockdown.