China announced the registration of the first human infection in the world with the “H10N3 bird flu”, so what is this disease, what are its symptoms, and are there real fears that it will turn into an epidemic?
The National Health Commission of China said – on Tuesday – that a 41-year-old man from Jiangsu Province was confirmed as the first human case of the “H10N3” strain of bird flu. Read also Symptoms of black fungus.. 18 signs of infection Symptoms of the Corona virus .. 33 signs of infection In conjunction with Corona, bird flu is spreading again in China The discovery of the first human case of the H5N8 strain of bird flu
The committee said – in a statement – that the man – who lives in the city of Zhejiang in the eastern region of China – was taken to the hospital on April 28, after suffering from a fever and other symptoms.
The committee added that it was confirmed that he had been infected with the “H10N3” strain of bird flu on May 28, but did not go into details on how he was infected.
What are the symptoms of bird flu?
Here we present the general symptoms of avian influenza and other forms of zoonotic influenza (eg “H10N3 avian influenza”), according to the World Health Organization , including:
- Mild conjunctivitis.
- Severe pneumonia.
- High temperature (which is 38 degrees Celsius or higher).
- Signs and symptoms of lower respiratory tract infection, including shortness of breath or shortness of breath.
- Symptoms of an upper respiratory infection such as a sore throat or a cold, which are less common.
- Abdominal pain.
- Gingival bleeding.
- chest pain;
Can a man’s infection turn into an epidemic?
The answer – according to the existing data – is that the probability of this happening is very low. And the National Health Commission of China reported that this strain is relatively less contagious and that the risk of it spreading widely is very low.
The condition of the injured man is stable enough to be discharged from the hospital. The medical observation of his contacts did not lead to the presence of new cases of infection.
For its part, the Russian Scientific Center “Vector” announced that there is no evidence that bird flu “H10N3” carries with it new epidemic risks, according to a report in Russia today.
The TASS news agency quoted the Russian center as stressing the need to “conduct a study of the genetic and phenotypic characteristics of the virus from a person infected with the disease in Jiangsu Province in order to give a more balanced assessment of the epidemiological potential of this virus.”
The center’s specialists also noted that the H10 subtype viruses are prevalent among birds, but a number of studies show that it can be transmitted to mammals, adding that “the mechanism for tracking the spread of avian influenza viruses – established in the Russian Federation – makes the It is possible to respond effectively and quickly to any potential threats.”
And the World Health Organization told ABC News – in a statement yesterday, Wednesday – that “the source of the patient’s exposure to the “H10N3” virus is currently unknown, and no other cases were found in emergency surveillance among the population. locals”.
As health officials investigate how the man became infected, The World Health Organization said the virus does not appear to be spreading between people and there is currently no indication of a widespread outbreak.
The World Health Organization said it was first informed of China’s case on May 31.
“This represents the first-ever report of the World Health Organization of a human infection with the H10N3 virus,” the organization told ABC in a statement.
Adolfo Garcia Sastre, a professor in the Department of Microbiology at Mount Sinai School of Medicine in New York, said that human infections with bird flu viruses are rare, but not uncommon (that is, they are rare, but sometimes happen), in a statement to the “Wall Street Journal. ” (The Wall Street Journal).
Professor Saster said: “It is very likely that this infection is just one of the rare occurrences of bird flu, with no other consequences…However, it is important to ensure that this is just a rare and isolated incident.”
In China, there are different strains of bird flu, and some of them infect humans from time to time, especially those who work in the field of poultry.
There are no large numbers of human infections with the “H7N9” strain of bird flu, which killed nearly 300 people during 2016 and 2017.
The National Health Committee said that no human case of the “H10N3” strain had been reported in the world before.
Many copies of avian influenza have been detected in animals in China, but it has rarely spread widely in humans.
The last human epidemic of bird flu was recorded from the end of 2016 to 2017, according to the Food and Agriculture Organization of the United Nations.
After the recent outbreak of bird flu in Africa and Eurasia; Last week, the director of the China Center for Disease Control and Prevention called for tighter control of poultry farms, markets and wild birds.
zoonotic influenza viruses
The World Health Organization says that humans can be infected with avian influenza viruses and other zoonotic influenza viruses such as the H5N1, H7N9 and H9N2 avian influenza viruses. (H9N2) and the H1N1 and H3N2 (H3N2) swine influenza viruses.
Human infections have occurred mainly through direct contact with infected animals or contaminated environments; However, this infection does not lead to the effective transmission of these viruses to humans.
There is no evidence that humans can be infected with avian or zoonotic influenza viruses through properly cooked foods.
The majority of human infections with the H5N1 and H7N9 viruses have been associated with direct or indirect contact with infected live or dead poultry.
Disease control at the animal source level is crucial to reducing human exposure to infection.