What Is Influenza B?

Influenza (influenza for short) is an acute respiratory infection caused by influenza virus. It is also a highly infectious and fast-transmitting disease. It is mainly transmitted through droplets in the air, person-to-person contact, or contact with contaminated items. Typical clinical symptoms are: high fever, general pain, marked fatigue, and mild respiratory symptoms. Generally, the autumn and winter season is its high incidence period, and the complications and deaths caused by it are very serious.

Influenza B

Influenza B, an influenza caused by the influenza B (B) virus, is characterized by rapid onset, chills, fever, and body temperature rises to a peak within hours to 24 hours, 39-40 ° C or higher . With headache, general soreness, fatigue, and loss of appetite. Respiratory symptoms are mild, dry throat, sore throat, dry cough, and diarrhea. The face was flushed, the conjunctiva was congested, the pharynx was congested, and there were follicles on the soft palate. It can be treated with amantadine as an M2 ion blocker and other traditional Chinese medicine. During the 9 days from January 18 to 26, 2012, the Hong Kong Special Administrative Region Health Protection Center recorded five new cases of influenza reporting, of which three died and two were critically ill.

Influenza b influenza

Influenza B influenza virus

Orthomyxoviridae: A class of RNA viruses with special affinity for mucin

Divided into four genera:

(A) Influenza B (A) influenza virus

Of the 15 H and 9 N subtypes, only 3 H subtypes (H1, H2, H3) and 2 N subtypes (N1, N2) spread among humans. Some lower animals and birds are natural hosts.

(B) Influenza B (B) Influenza Virus

Whether they can infect animals other than humans is still uncertain, and there are reports that they can infect seals.

(C) Influenza B (C) virus

Has been confirmed to infect pigs.

(D) Influenza B (D) influenza virus

(Thogoto virus)

Seven genes were found in Africa. The virus is transmitted by ticks and infects cattle, sheep and humans with meningitis. Rarely reported.

Influenza B Influenza B

Influenza B is an influenza caused by the influenza B (B) virus.

Different from other flus

Epidemiology of influenza B

1. Source of infection: patients with influenza and recessive infection are the main sources of infection. Infectious 1 to 7 days after the onset, and the most infectious 2 to 3 days after the onset of disease.

2. Transmission: Air droplets are the main transmission, and flu viruses live in the air for about half an hour and are contaminated daily necessities.

3, susceptible people: generally susceptible, have a certain immunity after illness.

4. Popular characteristics:

1) Epidemic characteristics: Sudden occurrence, rapid spread, peak in 2 to 3 weeks, high incidence, short epidemic period, about 6 to 8 weeks, and often spread along traffic lines.

2) General rules; first urban, then rural, first collective units, then scattered residents.

3) Epidemic season; all seasons can occur, mainly in winter and spring. In the south, influenza epidemics can also be seen in summer and autumn.

5. Influenza B is an outbreak or pandemic. The virus does not mutate and generally does not infect animals other than humans.

How to treat influenza B

General symptomatic treatment of influenza B

Influenza B prevention Rest in bed, drink plenty of water, give liquid or liquid diet, suitable nutrition, supplement vitamins, rinse with warm water or warm saline after eating, keep mouth and nose clean, and give anti-infective treatment when systemic symptoms are obvious.

Early antiviral treatment for influenza B

1. It can reduce the amount of virus detoxification, inhibit virus replication, reduce clinical symptoms, and prevent complications such as pneumonia caused by the virus from spreading to the lower respiratory tract.

Drugs

1) Amantadine is an M2 ion blocker, which can block the virus from adsorbing to sensitive cells, inhibit virus replication, and is effective for influenza A. The effect was good within 48 hours of onset. Dosage: 200mg / day for adults, 100mg / day for seniors, 4-5mg / kg / day for children; Usage: divided into two oral doses for 3-4 days; side effects: nervous system symptoms such as dry mouth, dizziness, lethargy, ataxia .

2) Dosage of methyl amantadine: 100-200 mg / day, usage: 2 times orally, its antiviral activity is 2-4 times higher than that of amantadine, and it has fewer neurological side effects.

3. Precautions: Pregnant women, neurological, psychiatric disorders, severely impaired liver and kidney function are prohibited, and these two drugs are prone to drug resistance.

Chinese medicine treatment for influenza B

Chinese medicine treatment of flu

There is a saying in Chinese medicine: "The righteousness is in the inside, the evil cannot be done", that is, if the body is strong, it will not be disturbed by external evils (viruses). Therefore, traditional Chinese medicine focuses on treating the root cause. On the one hand, it will use herbs to reduce inflammation and detoxify, and on the other hand, it will improve physical function and enhance immunity. If you just eliminate the discomfort of the cold without improving your physique, you will be vulnerable to the virus again. Therefore, people who often catch a cold must pay attention to it, indicating that they are weak and have low resistance, and they must make appropriate adjustments.

There are many changes in medication, such as:

Anti-inflammatory and sterilization, improve immunity: available isatis root, forsythia, silver flower

Promote blood circulation in the head: available Amaranth, Nepeta, Chrysanthemum

Clearing heat and reducing fever: available mulberry leaves

Relieve energy and relieve heat: Pueraria, mulberry, and loofah can be used

Folk Food Therapy: Hot Lemon Ginger

From the beginning of a cold, many people are accustomed to having a cup of hot lemon, cola and ginger in a tea restaurant to relieve symptoms. It is said that the effect is quite good.

In the end, how does this "music" work? According to the theory of traditional Chinese medicine, Jiang could have vitality and blood circulation. If it is a cold-type cold, and it is cold and hot, when you are bored, you can get a cup of "Jing" Jiang Cola. There is also a diet formula that uses porridge with ginger and porridge instead of three meals. It is especially suitable for those who enter the stomach with viruses.

As for orange juice, is it true that it is said to speed up the healing of the cold? Usually supplementing with vitamin C can indeed reduce the chance of infection, but because most fruits are cold, it is easy to cause cough, so you should not eat more when you have cough. Only apples can be eaten barely, or oranges can be stewed, but of course the taste is different.

On the contrary, you can drink hot lemon music, because fresh lemon is rich in vitamin C, appetizing and refreshing, honey can be moisturized, drink it hot, throat itching and discomfort will indeed be reduced.

There is another simple recipe, which is very effective for collecting nose water. The only disadvantage is that it tastes bad: first cook ginger for 20 minutes, then add light bean drum and three bars? # 93; white, and 1 yuan (3 grams) mint Leaves and cook for about 2 minutes.

Preventive measures against influenza B

Influenza B control treatment source of infection

Early detection, early reporting, early isolation, early treatment

Respiratory isolation for 1 week or until main symptoms disappear

Cut off the route of transmission of influenza B

1. During the epidemic, avoid assembly or group entertainment activities. People who are susceptible to old, young, sick and disabled should go to public places, pay attention to ventilation, and disinfect public places if necessary.

2. Medical staff wear masks, wash hands, and prevent cross infection

3. Patient utensils and secretions should be thoroughly disinfected

Influenza B vaccine prevention

Inactivated vaccine: The effect is better. The inoculation object is the elderly, children, patients with severe chronic diseases, people with low immunity and who may be in close contact with the patient. The inoculation time is from October to mid-November each year, and the vaccine can be effective in 2 weeks antibody. The following conditions are prohibited: people who are allergic to eggs; patients with acute infectious diseases, mental patients, early pregnancy, infants under 6 months.

Attitudes towards influenza B Live attenuated vaccine: nasal spray

Influenza B Prevention

For those who may be infected without susceptibility in susceptible people, amantadine is not effective against influenza B.

Several common small measures to prevent influenza:

1. The windows are often opened and ventilated indoors to keep the air fresh

2. Avoid going to crowded public places to avoid getting infected with influenza virus.

3. Strengthen outdoor physical exercise to improve the body's ability to resist disease.

4, the autumn and winter climate is changeable, pay attention to add and subtract clothes.

5, drink plenty of water, eat more light food.

6. Get a flu shot.

Influenza B in Hong Kong

January 18, 2012 to

Hong Kong hospitals stand up to fight flu In the 9 days on the 26th, the Hong Kong Special Administrative Region Health Protection Center recorded 5 new cases of influenza, of which 3 died and 2 were in critical condition.

Figures show that Hong Kong's influenza B is on the rise. More than 70% of the 196 influenza samples were influenza B.

According to the latest issue of the Center for Health Protection's "Influenza Express", the three people who died of the flu were 88-year-old women, 82-year-old men, and 86-year-old men. In addition, two 39-year-old and 54-year-old men are still hospitalized in critical condition. ^[1]