Bird flu alarm continues in some Latin American countries, as Brazil recently reported the deaths of more than 500 lions and sea lions and other mammals in October.
Brazilian health authorities discovered the outbreak in early October in the southern Rio Grande state city of Cassino Beach, when some sea lions and sea lions began to show symptoms.
This led to experts testing the animals, which showed they were positive for avian influenza.
Government authorities have had to bury dead sea lions on beaches to prevent the infection from spreading to other animals in the area; similarly, they ask people to stay away from dead or sick animals to avoid spreading it to humans.
The researchers said sea lions may have become infected after eating infected birds, but they did not rule out the possibility of transmission between sea lions.
What is avian influenza?
Avian influenza is a disease found primarily in wild and aquatic birds around the world; they can infect poultry and other animal species.
Bird flu does not usually spread to humans, but, in some cases, humans have tested positive for the virus. The first recorded human infection occurred in Hong Kong in 1997.
Avian influenza is a highly lethal animal disease, and although human cases are rare, it is also known to cause death in infected humans.
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