Warnings have emerged regarding a vaccine-resistant bird flu, a viral disease affecting birds that can transmit to humans and cause severe respiratory complications.
What is Bird Flu and How Does it Evolve?
This infection is caused by the Influenza A virus, which targets the respiratory system of birds. While some wild birds may carry the virus without becoming ill, it causes high mortality rates in domestic poultry, such as chickens and geese.
The danger lies in the ability of these viruses to mutate, which may lead to the emergence of a vaccine-resistant bird flu strain or one that resists medications, potentially becoming more capable of spreading among humans. For example, the H7N9 strain has shown some samples to be less responsive to available drugs, while strains resistant to Oseltamivir (Tamiflu) responded to another drug called Favipiravir.
Transmission Methods and Risk Factors
The virus spreads from infected birds through respiratory secretions, saliva, and feces. Humans can become infected via:
- Close and prolonged contact with poultry on farms or in home coops.
- Inhaling air contaminated with bird droppings or touching contaminated surfaces and then touching the eyes, nose, or mouth.
- Consuming undercooked poultry meat or eggs, or raw milk derivatives from infected cows.
Regarding human-to-human transmission, opinions vary; some reports indicate insufficient evidence of the virus spreading easily between people, while laboratory studies have shown the possibility of transmission between mammals via respiratory droplets.
Symptoms and Complications of Bird Flu
Symptoms usually appear within 7 to 14 days of exposure to the virus, ranging from mild cases to severe pneumonia. Common signs include:
- High body temperature (fever).
- Cough and shortness of breath.
- Conjunctivitis (pink eye).
- Digestive disturbances such as vomiting and diarrhea.
The infection may lead to serious complications, including the worsening of chronic lung diseases like asthma, or the development of sinusitis and ear infections.
Ways to Prevent Bird Flu
To protect against infection, the following measures are recommended:
- Washing hands with soap and water or alcohol-based sanitizers before and after preparing food and handling animals.
- Cooking meat and eggs thoroughly before consumption.
- Using masks in areas where the disease is prevalent.
- Covering the mouth and nose when sneezing or coughing using tissues and disposing of them immediately.
When to Visit a Doctor?
You should seek medical care immediately in the following cases:
- The appearance of flu-like symptoms after contact with infected birds or animals.
- Feeling shortness of breath within 10 days of visiting areas where the virus is spreading.
- Being in a contaminated environment while showing signs of illness.
Frequently Asked Questions
Can the virus be transmitted by eating eggs?
Transmission through eating eggs or meat has not been proven, but it is strongly advised to cook them thoroughly to ensure safety.
Are all birds in parks dangerous?
No, birds commonly seen in parks, such as sparrows and crows, do not generally pose a significant risk as they often do not carry the viruses that infect humans.
What is the H7N9 strain?
It is one of the Influenza A virus strains that infects birds. Human infections and deaths have been recorded, and it is characterized by its ability to mutate and resist some treatments.
Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice.
Related articles
- Workplace Coronavirus Prevention Health Guide
- Cold Prevention Guide: Tips and Effective Methods
- Effective Rubber Glove Disinfection Methods and Mask Care
- Avoid These 7 Common Cold Mistakes for Faster Recovery
- More about Colds, Flu & COVID-19
Illustration: AI-generated
approved by: Medica Health team