The first human victim of the H5N1 bird flu virus in the US has been reported in Louisiana. The patient, over 65 years old, was infected after contact with domestic and wild birds. Health officials have stated that the risk of spreading bird flu among people remains very low, and there is no evidence of human-to-human transmission of the virus. US authorities have called for increased precautions among poultry workers and farmers. Experts warn that mutations in the H5N1 virus could increase its ability to infect humans more effectively, posing a major public health threat.