Brazil has declared a six-month animal health emergency after several cases of avian flu...
flu
Cases of bird flu have been detected in backyard chickens in Paraguay, authorities said...
Lara Adejoro The World Health Organisation has warned Nigeria and other countries to prepare...
Cambodian health authorities have said there was no human-to-human transmission of bird flu in...
United States biotech company Moderna said on Thursday that it had mixed results from...
