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Recently, the flu has been high in many places in Guangdong.

January 3rd

The topic of "A stream just attracts B stream"

Chong chong re sou

Some netizens are confused.

Both influenza A and influenza B belong to influenza.

There are antibodies in the body after being infected with swine flu.

How can you still be infected with B stream?

Some netizens reported that

I do have it myself.

The experience of being infected with influenza A and B successively.

Why does it appear?

Repeated infection with influenza A and B?

Is there a high probability of repeated infection?

What is the difference between B-stream and A-stream?

How to protect?

……

In view of the above problems

Southern Hospital of Southern Medical University

Peng Jie, Director of Difficult Infection Treatment Center

Sun Yixian Memorial Hospital of Sun Yat-sen University

Yang Zhengfei, Deputy Director and Chief Physician of Emergency Department

Give an answer

The number of children’s emergency treatment decreased, while that of adults increased.

ask

Recently, what is the situation of respiratory diseases in hospitals?

answer

Peng Shu: Winter is the season of high incidence of respiratory diseases. Recently, the number of outpatients with fever has nearly tripled compared with before. Most of the patients are infected with influenza virus. Although the number of patients with B-stream has increased, most of them are still patients with A-stream.

Yang Zhengfei: According to the situation in the North Campus where I am located, the number of daily visits to fever clinics has gradually increased compared with the same period or previous months, but the number of emergency departments for children has declined and the number of emergency departments for adults has increased. But on the whole, it is basically the same as before the epidemic, and the public does not need to panic.

The main epidemic pathogens are influenza virus and mycoplasma pneumoniae, and there are also some common pathogens that cause common colds, such as rhinovirus and respiratory syncytial virus.

ask

What are the symptoms and characteristics of influenza patients? What is the difference between symptoms of A stream and B stream?

answer

Peng Cong: The patient has symptoms of acute upper respiratory infection such as fever, cough and sore throat, and symptoms of systemic poisoning such as headache and muscle aches. However, the condition of most patients is not serious, and there are not a large number of seriously ill patients, which has not increased compared with before, so the public need not panic.

Both A-stream and B-stream show symptoms of acute upper respiratory tract infection and systemic poisoning, so they cannot be distinguished by symptoms. However, compared with B-stream, the symptoms of A-stream will be heavier and more contagious, and patients will continue to have fever for a longer time. However, there are still differences in symptoms among individuals, so it is recommended that patients be tested and treated in time.

ask

Why does B-flow fluctuate and rise?

answer

Peng Zhen: Both influenza A virus and influenza B virus will appear in the crowd. Assuming that some people are infected with influenza A, the risk of infection with influenza B will be relatively reduced.

However, assuming that a person has not been infected with influenza A or B recently, after influenza B becomes the dominant virus strain, it may be infected with influenza B..

It is unlikely to be infected with influenza A and B in a short period of time.

ask

Is there a high probability of being infected with influenza A and B successively?

answer

Peng Zhen: Generally speaking, the probability of being infected with influenza A and B in a short period of time is very small. Because the immunity to the same kind of virus strain is very strong, the antibody maintenance time is about 3-6 months, but although there is partial cross immunity to different virus strains, it is still not strong enough, and the influenza virus is constantly mutating, so there is still the risk of reinfection during this period. In addition, whether the virus is infected or not is affected by various factors, such as individual immunity, the number of infected viruses, the virulence of virus strains and so on.

For healthy people, it is unlikely that they will be infected with influenza A and B in a short period of time. However, for people with weak resistance and insufficient immunity to prevent the infection of the next virus strain, theoretically, there may be cases in which two viruses are infected successively.

Yang Zhengfei: There are many types of influenza. We found that patients infected with influenza A will produce certain antibodies, but this antibody may weaken the preventive effect of influenza B virus, which is not enough to cover new virus infections, and there may be "virus escape", but this situation is rare.

No matter what kind of virus the patient is infected with, if he doesn’t have a good rest, drink plenty of water and supplement enough nutrition, his body is not well conditioned, and it is easy to merge or infect other pathogens again.

ask

Are there any recurrent infections?

answer

Peng Shu: I met some young people with low immune function or overworked recently in the outpatient department. Some time ago, they were infected with mycoplasma pneumoniae, and during this time, they were infected with the flu, which means "repeated infection". But I have never met a patient who has been infected with influenza A and B in a short period of time.

Yang Zhengfei: Influenza A virus and influenza B virus belong to the same genus, and basically will not be co-infected at the same time. We encounter more virus mixed bacteria or mycoplasma infection. For example, patients were infected with swine flu first, and their immunity decreased, and then pneumonia appeared. The pathogen that causes this pneumonia may not be a virus, but mycoplasma pneumoniae, streptococcus pneumoniae and even chlamydia.

Reduce unnecessary "vaccine hesitation"

ask

Do I need to take oseltamivir as soon as I am infected with influenza virus?

answer

Yang Zhengfei: For healthy adults with no basic diseases, symptomatic treatment is enough. Taking antiviral drugs within 24-48 hours after symptoms appear, such as oseltamivir and mashalovir, can effectively shorten the course of disease and reduce the probability of becoming severe. In addition, patients must rest well and avoid staying up late and doing high-intensity exercise. At the same time, drink plenty of water and supplement vitamins and nutrition.

For people with basic diseases and low immunity and the elderly, antiviral drugs should be taken in time to block the damage to lungs, hearts and other organs that may occur due to the continuous replication of the virus. However, if you have a persistent high fever of 39℃, your body temperature will not drop for two or three days, or you have symptoms such as dyspnea, you must come to the hospital in time.

However, if it is a common cold, the patient is weak. Therefore, it is suggested that patients should not blindly come to the hospital to see a doctor. Not only will they not get a good rest, but they will also increase the probability of cross-infection, which is not conducive to the recovery of the body.

ask

What kind of flu protection awareness should the public establish?

answer

Peng Qi: Although the flu is a self-limiting disease, it is not a cold. Don’t take chances. I appeal to the public to reduce unnecessary "vaccine hesitation". At present, the most economical and effective measure to prevent influenza is to vaccinate against influenza. Therefore, it is suggested that people who have not been infected with influenza virus, especially those with low immune function, the elderly with basic diseases and high-risk people, should be vaccinated as soon as possible.

Yang Zhengfei: If you have a cold or fever, don’t go to public places, classes or work unless necessary. If you have to go, it is recommended to wear a mask and pay attention to the etiquette of coughing and sneezing to avoid cross-infection.

For people who are not infected with the virus, it is not necessary to wear a mask if they are healthy, have no basic diseases and do not go to crowded places. For the elderly over 65 years old, people with basic diseases and people with low immunity, whether they are infected with the virus or not, they must wear masks and wash their hands frequently in crowded places.

ask

Can patients buy influenza detection reagents to test themselves?

answer

Peng Qi: Different detection methods produce different results. The sensitivity of some antigens is not high, and there may be "false negative" or "false positive". If the symptoms are serious, it is recommended that patients go to the hospital for regular testing, and it is best to do influenza nucleic acid testing if conditions permit.

News

Original title: "A stream just recruited B stream? Expert response → "

Read the original text

　　On 25th, "Chopsticks Brothers" responded to lip-synching at the National Music Festival: After going to America, they were under great pressure and didn’t sleep well. The safest thing to do was to ring.

　　Chopsticks brothers said, "Little Apple itself is a song that is sung while dancing. It is difficult to sing well under such a large amount of dance, and it will be out of breath. We are not full-time singers, and the version of Little Apple performed in AMA this time has greatly changed from our previous version. It was three minutes and thirty-one seconds before, and this time it was two and a half minutes, so I rearranged the choreography. This time, LADY GAGA’s choreographer was also very powerful, adding a lot of new moves to us. We had to work hard just to remember the dance steps, and we had to step off the stage to interact with each other. There were many positions on the stage. For those of us who didn’t have dance skills, after just two rehearsals, we were all at a loss and under great pressure. We didn’t fall asleep these days in the United States. The safest way to perform on such a big stage is to ring, and finally we chose this way. "

　　Original title: Chopsticks brothers admit to lip-synching in the United States: too much pressure, no bottom in my heart.

On June 14, Dongfeng Yipai’s second blockbuster model, the family intelligent large SUV – eπ 008, was officially launched and delivered. The new car launched extended range and pure electric models, and the same price starts at 216,600 yuan.

In addition, the official also launched a limited-time preferential car purchase gift, before June 30 can enjoy the high value of 28,000 yuan expansion gift and first enjoy the gift of cash reduction and other car purchase rights, limited-time to hand car price 188,600 yuan.

According to the official introduction, as an important part of Dongfeng Motor’s "three-year action plan for transformation and upgrading", the eπ 008 is equipped with a number of key core technologies such as Dongfeng Quantum Architecture, Mach Power, and SOA Intelligent Cockpit.

At the product level, the e π 008 is positioned as a home smart large SUV, with a wide front face and digital drill front penetration lights. The rear of the car also adopts a penetration light group, which echoes the end and end. The side design is flowing, and the wind resistance coefficient can be achieved by 0.268. In addition, the new car also has a ritual design such as a hidden smart starlight grille and a D-pillar digital rhythm charging indicator light.

Entering the interior, the eπ 008 is a large SUV that can bring comfort to the whole family. It has a 5-meter length, a 3-meter wheelbase, and a real three-row six-seat layout. The front seats of the eπ 008 are equipped with electric adjustment and ventilation heating as standard, and the main driver’s seat is also equipped with position memory, electric waist support and other intimate functions.

The car has a 180mm ultra-wide rear aisle, allowing passengers to easily enter and exit two or three rows. The second row is a business class-style two-seat design, both of which support electric adjustment and ventilation heating. The right side provides zero-gravity seats, one-button lying flat, and 8-point massage and other comfortable experiences. In addition, the center of the second row is equipped with a dual-purpose electric sliding refrigerator, which supports voice and touch electric sliding.

In terms of smart cockpit, the new car is based on Dongfeng’s self-developed SOA smart cockpit, which can support one-click switching between nap mode, movie viewing mode, etc., and can also customize scene mode. The eπ 008 is equipped with a 15.6-inch smart rear entertainment screen, which can realize functions such as wireless screen projection and one-click fly screen.

In terms of intelligent driving, the Eπ 008 comes standard with 20 intelligent driver assistance functions, and also provides high-speed NOA pilot assistance, 400-meter over-the-horizon memory parking and other high-level intelligent driving functions.

In terms of power system, the new car provides both pure electric and range extension power. The efficiency of the Mach electric drive assembly is as high as 94.5%, the comprehensive energy consumption of the CLTC is as low as 14.7kwh/100km, and the battery life of the pure electric model CLTC reaches 636km. The range extension model is equipped with a new Dongfeng Mach super range extension system and a smart range extension digital twin platform, and adopts a 1.5T range extension special engine with a thermal efficiency of up to 45.18%.

It is worth noting that the application ratio of high-strength steel in the safety layer of the eπ 008 is as high as 70.8%, and the key crew compartment areas are all made of 1500MPa ultra-high-strength steel plates. In addition, the eπ 008 series is equipped with 6 airbags as standard, and the side air curtain spans three rows. The power battery is a Mach battery. The official introduction said, "not afraid of poking, not afraid of squeezing, not afraid of bubbles, not afraid of falling, not afraid of shaking, and using cloud BMS full life cycle health management, it can realize" OurHours domain "thermal runaway monitoring."

It is understood that, as the core of the "Dongfeng Fengqi" strategy, Dongfeng Yipai has completed the layout of nearly 300 outlets nationwide in the past seven months with the full support of Dongfeng Motor. According to the official introduction, Dongfeng Yipai will continue to explore more possibilities for connecting with users with more advanced technology, better products, more comprehensive services, and better market performance.

　　If you are a wealthy businessperson, you may need a car to show your identity, but if you are a political figure or someone whose life is threatened at any moment, only the XJ Sentinel can meet your requirements, because in addition to being a status symbol, protecting the safety of the people in the car comes first.

　　You can simply understand the XJ Sentinel as a bulletproof version of the XJ. This model is actually not uncommon. There are such models, and it is still very rare for Jaguar to launch bulletproof models. With the help of Kevlar fiber, the XJ Sentinel’s safety has reached B7, which means that its car can withstand military-standard small arms and grenades and other weapons.

　　Of course, the weight of such a sturdy car is also very considerable. It is reported that the weight of the XJ Sentinel has reached 3300kg, which is 1426kg more than the standard version of the XJL. The original 5.0-liter V8 engine has not changed, it is still 283kw and 515N.m, so it takes 9.7 seconds to accelerate such a heavy XJ Sentinel 100 kilometers, and the top speed is only 195km/h. (Text/Wang Tianyi)

　　Related reading:

　　Absolutely tight fit! Bulletproof version model released
　　http://www.autohome.com.cn/news/200904/59046.html

Haval’s second-generation big dog Hi4 version (2024 models) has been officially launched.

There is only one version of the new model, priced at 179,800 yuan.

The Hi4 version has the same body size as the old model, still 4705 * 1908 * 1780 mm, and the wheelbase is 2810 mm. The upgrade of this version is mainly on the drive platform. The old model uses Haval’s first-generation 2DHT plug-in hybrid technology, which is the front front drive. The new Hi4 is a three-engine four-wheel drive, and the driving experience will naturally change. The four-wheel drive also has a certain light off-road capability. Its standard is the same as that of the Haval Xiaolong MAX and Haval Raptors.

So it is understandable that the price of the second-generation big dog Hi4 version is higher than that of the old model, and the price of the old model is 16.28, 16.58, 175,800 yuan.

The configuration difference between the second-generation Big Dog Hi4 version and the old flagship version is very small, mainly due to the change of tire specifications. The new tire specifications are upgraded to 245/55 R19, and the old model is 235/60 R19. Other configurations are not bad, including L2-level auxiliary driving system, panoramic image, panoramic sunroof, smart car, leather seats that support front seat heating and ventilation, and automatic air conditioning.

But there is no differential lock, which is different from Haval Dogs or Haval Raptors, just like the Haval Dragon MAX.

Hi4 model summary

Haval brand currently has three cars using Hi4 hybrid four-wheel drive, the characteristics of its drive system are as follows. Haval Xiaolong MAX, 1.5L Hi4, power reserve is 205kW/585N · m, guide price 15.98, 16.98, 179,800 yuan Haval Raptors, 1.5T Hi4, power reserve is 278kW/750N · m, guide price is 16.58, 17.38, 183,800 yuan Haval second generation big dog, 1.5T Hi4, power parameters are the same as Haval Raptors

The same plug-in hybrid system can be equipped with different standard engines and motors. The Haval Xiaolong MAX uses a 1.5-liter naturally aspirated hybrid engine, with parameters of 70kW/100N · m for the front motor and 150kW/350N · m for the rear motor. The other two cars have the same parameters as the rear motor. The front motor has the same power but the torque is increased to 160N · m, and uses a 1.5T turbocharged engine with higher power and greater torque. Therefore, the performance of these three vehicles is the weakest for the Haval Xiaolong MAX, and the overall standard of the second-generation big dog and Haval Raptor is the same.

Among them, the Haval Raptor belongs to the recently popular "square box" SUV, that is, an SUV with the shape characteristics of a traditional off-road vehicle but without the use of a non-load-bearing body. It is a sport utility vehicle with a certain light off-road capability; but even the Haval Raptor does not provide the standard configuration of the rear axle differential lock. Only the medium and high-end versions of the car support the optional installation of the rear axle differential lock, and the optional cost is 6,000 yuan. On the contrary, without the installation of the rear axle differential lock, its off-road escape ability will theoretically be in the same standard line as the Haval second-generation big dog.

So how should I choose this car?

Here can only say that you can choose whichever you like, because the hybrid system infrastructure used is the same, only the power of the Haval Xiaolong MAX is slightly weaker, but its price also has certain advantages. So the main difference is the appearance design and space, but the disparity in space is not large. Take the Haval Xiaolong MAX as an example, its body size is 4758 * 1895 * 1725mm and wheelbase is 2800mm, which is basically the same as the two big dogs.

Although the body size of the Haval Raptor reaches 4800 * 1916 * 1822 mm, the wheelbase is 2738 mm, and its body length includes the spare tire behind the tailgate, so the actual length and space performance are also on the same standard line.

The main difference between these three cars is indeed the exterior and interior design style.

Sales can be used as a reference for car selection. At the end of the article, let’s take a look at the retail sales data of these three cars in February 2024. However, it should be noted that the retail sales data of the Haval Second Generation Big Dog in this list is the data of the old model of the front-drive version. The product power of the new model has been improved, and it is expected that the sales volume will also increase in the future. Therefore, the following data should be analyzed rationally and for reference only.

The top seller is the Haval Raptors.

Tianhe Auto Editor, welcome to comment

Let’s take a look. Which new energy car is worth looking forward to next?

Highlights: Wheelbase lengthened by 18 cm/four-door version

When it was the hottest, it sold 400,000 + units a year,According to the latest filing information, it will increase the four-door four-seat version and sell it simultaneously with the two-door four-seat version.

Compared with the 2024 model, the size of the new car body will be improved. The length, width and height are 3256x1510x1578mm, and the wheelbase is 2190mm; the dimensional change is length + 192mm, width + 17mm, height -36mm, and wheelbase + 180mm. Put it on, the wheelbase increase of 18 cm is very exaggerated. The increase in size means that the weight of the car will increase, and the curb weight of the four-door version will increase by 20 kg to 780kg.

The appearance of the new car has changed, and it still has the cute style of "round head and round brain", but the whole shape is a bit tilted. After the headlight group is enlarged, it is not as sharp as a colorful fruit. The size of the rim is adjusted to 13 inches, and the optional no-wheel decorative cover is supported.

On the power, the car continues to provide a maximum power of 30kW, equipped with. The maximum speed is 100 km/h. The battery life has not been exposed yet, and it is expected to provide 120 km, 170 km and 215 CLTC operating conditions.

Highlights: A + class car with a battery life of 650 kilometers

It is said to be facing the MONA M03, positioning a compact pure electric car. The pre-sale price is 119,800 – 169,800 yuan, almost the same as the price of the MONA M03.

First, it is equipped with a 126-wire zoom lidar, equipped with Orin-X high computing power platform, with L2 ++ level auxiliary driving, and supports urban NDA functions. Second, its cruising range is 650 kilometers, and it uses 400V technology to improve charging efficiency. It can make up 200 kilometers in 10 minutes and 50% in 18 minutes. The third is to reach a 3480mm glass-free dome, which is really eye-catching.

In other respects, the AION RT uses seven more fashionable paint color schemes, which young people should like. The body size is longer and higher than the MONA M03, with a length of 4865mm and a height of 1520mm; but the wheelbase is slightly shorter by 4 cm, at 2775m.

The interior features the latest design of the family, which is mainly simple, with almost no physical buttons. The second row has a center armrest and a double water cup holder. What do you think of the AION RT car?

Highlights: Version ", released in October

Recently, MIIT’s filing picture appeared. It is another pure electric model under Lynk & Co after the Z10. It is positioned as a compact SUV, which can be understood as a version of Lynk & Co’s "Extreme Krypton X". It will be released in Europe in October. The car may be more biased towards overseas markets in the future.

The overall contour of the appearance is basically the same as that of the extreme krypton X, including the measurements of the body, which are only slightly adjusted on the basis of the extreme krypton X.The length, width and height of the Lynk & Co Z20 are 4460/1845/1573mm respectively, and the wheelbase is 2755mm. However, the Lynk & Co Z20 uses a slip-back body, and the front face is more like the Lynk & Co Z10.

The power is equipped with a single motor with a maximum power of 250 kW. The polar krypton X has dual motors. The reference price of the polar krypton X guide is 200,000 – 220,000 yuan. Presumably the price of the Lynk & Co Z20 with a single motor may be in the 150,000 range. If this price, can you accept it?

What to watch:Feed fuel consumption is reduced by 0.1L/100km.Cancel the three-link rear overhang

Its plug-in hybrid models will be fully powered in the second half of the year, and the new models will also be replaced with the fifth-generation DM hybrid technology without accident.A plug-in hybrid system composed of 1.5T and electric motor, of which the maximum power of the engine is 115 kW and the maximum power of the drive motor is 200 kW, both of which are on sale. The battery pack is expected to be the same as the 2025 Han DM, with a matching capacity of18.316 kWh battery pack, with a pure electric battery life of 125 kilometers and a feed fuel consumption of 5.75L.

It is worth mentioning that,The chassis of the new car has been upgraded toFive-link independent rear suspensionIt will also be equipped with the Cloud Carriage-C intelligent body damping control system.

The appearance of the new Tang DM-i basically maintains the outline of the current model. It will add "Weiyang Grey" paint color and provide blackening kit options. The body size remains the same. It may cancel the top long-life model and only provide a pure electric battery life version. If the configuration is reasonable, it will also be advanced, which will undoubtedly improve sales. For reference, the Tang DM-i sold 11,188 vehicles in August.

Write at the end

In addition to that,The sixth one is a test drive.It is one level larger than Hongguang MINIEV, positioning the electric hatchback small car, and now the announced pre-sale price is 78,800 – 109,800 yuan, which will be held on October 9. It is very reliable to use the rear drive single suspension,CLTC’s pure electric cruising range is 310 kilometers and 410 kilometers.If you want to rely on it to travel, it has a small size and a large "memory", and it is even equipped with a Flyme Auto system.For specific evaluation, you can go to Snail Car to see the test drives of every family.

I don’t know which of these new energy cars you are most looking forward to? Leave a message to discuss!