She is the third infected person Egypt has reported in three days. All are from Qaloubiyah governorate, about 40km (25 miles) north of Cairo.
   
A man admitted to hospital on Sunday recovered after being administered Tamiflu, but a woman died on Friday despite receiving the drug.
   
Initial tests in the two cases had shown virus infection, but authorities are awaiting further tests for final confirmation.
   
The state-run MENA news agency did not say whether the woman in the latest case had been tested for the bird flu virus.
   
"It was proven that she had handled infected birds and slaughtered some of these birds 15 days ago," MENA quoted Hatem el-Gabali, the health minister, as saying.
   
Tamiflu is one of the most effective ways of treating humans with bird flu, which has spread across Europe, Africa and parts of Asia, and killed more than 90 people worldwide since 2003.
   
The highly pathogenic H5N1 bird flu virus was first found in birds in Egypt last month. So far, 17 of Egypt's 26 governorates and the city of Luxor have reported cases in birds.
   
Although hard to catch, people can contract bird flu after coming into contact with infected birds. Scientists fear the virus could mutate into a form that could pass easily between humans, triggering a pandemic in which millions could die.