Bird Flu May Have Become Airborne, Scientists Reveal
In a recent development, scientists have indicated that bird flu might now be transmissible through the air, escalating concerns over its spread on dairy farms. The virus, also known as highly pathogenic avian influenza (HPAI), poses significant risks to both birds and mammals, causing severe illness and fatalities. The H5 family of bird flu viruses includes subtypes like H5N1, responsible for the ongoing outbreak. Initially detected in dairy cattle in March 2024, the virus has since made its way to 17 states, with California seeing the highest number of infected herds.
A study, published on Aug. 1, revealed alarming findings after analyzing 14 dairy farms in California. Researchers detected the bird flu virus in the air within milking parlors, suggesting possible airborne transmission to both cattle and farm workers. Moreover, the virus was found in the water used to clean milking facilities, raising concerns about contamination. Notably, some infected cattle showed no visible symptoms, indicating silent transmission even from seemingly healthy animals.
While the number of bird flu cases has decreased recently, the possibility of airborne transmission has sparked fresh worries among health experts. The Centers for Disease Control and Prevention (CDC) maintains that the overall public health risk remains low. However, individuals working closely with birds, poultry, or cows, as well as those consuming raw or undercooked products, face a higher risk of contracting bird flu. Precautionary measures include refraining from contact with sick or deceased animals and ensuring thorough cooking of poultry and eggs to kill harmful bacteria and viruses.
Earlier this year, the first bird flu-related death in the United States was reported, underscoring the severity of the situation. Health officials confirmed the tragic demise of a 65-year-old man in Louisiana due to exposure from backyard flocks and wild birds. Although the World Health Organization recognises the outbreak as a notable public health concern, it has not classified it as a global health emergency. Comparing it to the Covid pandemic, experts highlight that there is no evidence of human-to-human transmission of the bird flu virus.
Dr. Joseph Khabbaza from the Cleveland Clinic assures the public that the risk of infection remains minimal for the majority of people. Individuals directly involved in sectors like farming and animal care are advised to remain vigilant and employ necessary safety measures. As the global community navigates through these challenging times, staying informed and following recommended guidelines can help mitigate the risks associated with bird flu.