Background Articles

As bird flu cases go underreported, health officials risk being slow to notice if the virus were to become more contagious. A large surge of infections outside of farmworker communities would trigger the government’s flu surveillance system, but by then it might be too late to contain.

The article discusses the rise in tick-borne illnesses in Canada, highlighting a case of Powassan virus and the challenges in diagnosis and treatment due to limited awareness among healthcare providers.

In recent weeks, three human infections with the virus have been confirmed—all in dairy workers who had contact with sick cows. All three developed symptoms of eye infections known as conjunctivitis. The latest case, reported in Michigan this week, also involved respiratory symptoms more typical of a flu infection.

The article discusses the potential for bird flu to mutate and spread to humans through domestic cats, highlighting unusual cases of cat infections and the risks posed by raw diets and unpasteurized milk.

This article examines the unique spread of bird flu across multiple animal species, marking an unusual animal pandemic.

The Icelandic gyrfalcon population is at its lowest, with many nests empty, likely due to a higher than estimated impact of bird flu.

Over 5,000 Peruvian sea lions, approximately 5% of Peru's population, succumbed to a mass mortality event linked to the avian influenza A(H5N1) virus, signaling an urgent need for research and conservation efforts to prevent further declines. The rapid spread of the virus among these colonially breeding mammals highlights potential risks of cross-species transmission and the necessity for heightened monitoring to avert new pandemics.

The global surge of highly pathogenic avian influenza H5N1 has led to significant outbreaks and the need for vigilant surveillance and proactive measures to manage and mitigate future outbreaks.