The deadly disease has already killed dozens of people across Asia, and resulted in the culling of millions of birds.
According to test results, a young girl who died last week and a 27-year-old woman who died on Monday were exposed to the H5N1 virus.
Investigations are being conducted on several other recent fatalities. About 20 people are currently hospitalized with bird flu symptoms.
No evidence of human-to-human transmission has been revealed. Health officials warn if the virus combines with the human influenza virus, it could become highly infectious and lead to a global flu pandemic.
