there are 763 new local cases of dengue fever in 7 days! some people even entered the icu, and disease control in many places issued reminders

there are 763 new local cases of dengue fever in 7 days! some people even entered the icu, and many places have issued reminders for disease control.

2024-10-02

the environment and climate are changing drastically, ants frequently cause serious injuries to people, and mosquitoes bring large-scale infectious diseases.disease control and prevention in many places issued reminders: take precautionary measures when traveling during the national day holiday to avoid getting bitten!

poisonous ants bring down fifty-year-oldsstrong man, take a walk through the gates of hell

many people born in the 1980s clearly feel that today's ants are no longer the non-toxic ants they were when they were young, but have become poisonous ants.

born and raised in rural areas, 56 years oldzhang dalei (pseudonym) has been walking among the flowers and grass in the fields all year round. he has never seen any kind of wasps, spiders, and monsters. he did not expect that this time he would fall on a "little ant" while walking barefoot - his legs and feet were red and swollen.oral mucosal erosion and bleeding, a rash broke out on the maxillofacial skin, and he was sent to the icu (intensive care unit) for rescue overnight.

◎ symptoms of the patient while hospitalized. / picture: provided by the hospital

this is a case recently admitted to the second affiliated hospital of guangzhou medical university.rare case of critical illness caused by ant sting. experts from multiple departments including hematology and dentistry conducted emergency consultations and found out that zhang dalei's condition progressed very quickly. the ant's venom circulated throughout the body through the blood in his heels. he developed coagulation dysfunction and fell into a coma.

the treatment team worked hard to help zhang dalei overcome one difficulty after another, successfully preventing disseminated intravascular coagulation from developing to an extremely fatal rate, controlling acute kidney function damage, and saving his life. life.

“there are more than 800 known species of ants in my country, among which the most harmful to the human body isfire ants, humans will have a series of poisoning symptoms after being stung by such ants, which can even be fatal. "the treating doctor, professor weng zhiqiang from the department of stomatology, second affiliated hospital of guangzhou medical university, said that the ant that stung the patient this time is currently considered by experts to be red fire ants.

◎ fire ants. / picture: panoramic vision

data from the ministry of agriculture and rural affairs show that as of 2023, red imported fire ants have invaded 642 counties (cities, districts) in 12 provinces in my country.ant stings are most common in guangdong and fujian, which is related to the fact that the local climate is warm and humid, which is suitable for ant breeding.

why is being bitten by an ant so life-threatening?although ants are small in body, they have powerful weapons. the large jaws on its head can easily clamp people's skin, and the sting needles on its abdomen are its deadly "weapon" - injecting a large amount of venom in the poison sac into the skin, causing allergic and allergic immune reactions in the human body.

a man was "bitten" by a mosquito and was admitted to the icu, and his condition worsened after taking ibuprofen

not only are ants poisonous, but mosquitoes are equally ferocious.some young and middle-aged people have been recruited one after another。

recently, chen dong, a 20-year-old boy from guangzhou, suddenly experienced twitching of his limbs, chills, and even syncope on his way back from a trip. he was sent to the emergency room. it was diagnosed that chen was bitten by a mosquito.he was infected with japanese encephalitis and almost died.

◎/picture: internet screenshot

shen ming, who was also bitten by mosquitoes, stood by the ditch to smoke after having lunch in the cafeteria. he saw a few mosquitoes flying from his feet, but he had no idea that he had been bitten.

"i didn't feel anything after biting it," shen ming said two days latersudden high fever of 40℃, pain all over the body,it hurts more than a broken bone，after taking ibuprofen, it didn't get better, but made it worse., and also had bloody stools. when i went to the hospital for a checkup, the doctor exclaimed, "you don’t have an ordinary fever, you have dengue fever, and you’re taking the wrong medicine!”

denguethis is the sutraaedes mosquito(commonly known as "aedes mosquito"”）an acute infectious disease transmitted through bites, mainly through "patient → aedes mosquito → other people".

the typical fatality rate of dengue fever is generally less than 1%, but if not treated in time, it can become severe and the fatality rate exceeds 20%. the doctor reminds,fever and pain caused by dengue fever,acetaminophen (paracetamol) should be used, avoid nonsteroidal anti-inflammatory drugs such as ibuprofen and aspirin, which can increase the risk of bleeding.

dengue fever is coming fiercely, with 763 new local cases in 7 days

currently, guangdong, yunnan and other places have entered the dengue fever epidemic season, and the national day holiday is approaching. people move frequently, and the risk of epidemic spread will further increase.

in the past, dengue fever cases in my country were mainly concentrated in southern provinces such as yunnan, guangdong, zhejiang, fujian, guangxi, and hainan. however, except for xinjiang, qinghai, inner mongolia, heilongjiang, jilin, and ningxia, other provinces (autonomous regions and municipalities) have aedes versicolor mosquitoes. ” distribution, theoretically the spread of dengue fever can occur.

the higher the density of vector aedes mosquitoes in an area, the higher the risk of dengue epidemics.

the dengue fever epidemic in guangdong province has attracted much attention, and the risk of transmission is gradually increasing.only9in the first half of march, a total of 30 towns and streets where high-density monitoring points for vector aedes mosquitoes are located were detected in the province.inguangzhou and shenzhen have the most，followed by zhuhai city。

◎ distribution table of towns and streets where high-density monitoring points for dengue fever vector aedes mosquitoes are located in guangdong in the first half of september. /photo: guangdong disease control

guangdong disease control monitoring shows that from september 9 to 15, 775 new dengue fever cases were reported in the province, including 768 local cases and 7 imported cases;september 16-22，764 new dengue fever cases were reported in the province, including 763 local cases, 1 imported case, among which the number of cases ranked high isfoshan, guangzhou, zhongshanand other cities.

since may, guangzhou has successively reported multiple local and imported dengue fever cases. according to the latest reminder issued by guangzhou disease control and prevention on september 20: local cases of dengue fever have appeared in 97 streets and towns in the 11 districts of guangzhou, and imported cases of dengue fever have occurred in 32 streets and towns in the 11 districts.

it is worth noting that, unlike previous years, guangzhou’s dengue fever epidemic this year has set multiple “earliest in recent years” records.

◎ aedes aegypti. /picture: 123rf

guangzhou disease control experts said that guangdong has had more rain this year, which has led to an increase in the density of mosquito vectors. at the same time, affected by the high incidence of dengue fever worldwide, theguangzhou reported its first local case of dengue fever on may 2 this year, one month earlier than usual.；in previous years, local cases did not appear in some areas of the city until the end of september or early october. however, in early september this year, local cases have affected all 11 districts of the city.。

shenzhen disease control and prevention announced on september 22 that 18 communities in 8 districts of shenzhen are carrying out local case epidemic management of dengue fever. the risk of the epidemic is at a medium level. it is expected that the risk of local cluster epidemics and multi-point spread will continue until late october. .

when traveling during the holidays, men need to be more protective than women

there is no specific medicine for dengue fever. controlling the vector aedes mosquitoes and preventing mosquito bites are the best ways to avoid this infectious disease.

"without stagnant water, there are no mosquitoes." guangdong cdc issued a health reminder and called on everyone to take action immediately, including installing screen windows and screen doors, hanging mosquito nets and other anti-mosquito measures, turning pots and jars upside down, and promptly cleaning up the mess in the home, in front of and behind the house. if there is stagnant water, use mosquito coils, electric mosquito swatters, etc. to kill mosquitoes and keep your home as mosquito-free as possible.

◎be careful to prevent mosquito bites when outdoors. /picture: 123rf

compared with women, who pay more attention to protection, men naturally don't care about this aspect. they wear shorts and short sleeves as long as they are cool and comfortable, and rarely use anti-mosquito sprays and other products.men are more likely to be bitten by mosquitoes than women.

during the special period of dengue fever epidemic, men should strengthen personal protection.

outdoor anti-bite：

1.mosquitoes are active in the early morning and evening, outdoor activities can also be avoided during these two time periods.

2. recommendations when going outwear light-colored long-sleeved pants, reduce skin exposure and avoid staying in the shade of trees, grass, pavilions, etc.

3. can be used on exposed skin and clothinguse ingredients containing deet, deet, picaridin, lemon leaf, eucalyptus oil, etc.mosquito repellent products.

self health monitoring：

if you or your family members develop dengue fever-related symptoms such as fever, rash, muscle and joint pain, you need to go to a regular hospital as soon as possible and inform the doctor of the specific symptoms and whether anyone around your home is infected with dengue fever.

outdoor play,also watch out for ant infestations. "wash immediately and repeatedly after being stung by an ant. those who have systemic reactions should seek medical treatment promptly.". the doctor emphasized that no matter whether red ants or black ants are bitten, you should not be careless and treat them correctly as soon as possible. there is no specific medicine for ant bites. don't be superstitious about the so-called "folk magic medicine". identify the ants or bring them with you the ant specimen went to the hospital for treatment.

the correct way to deal with an ant sting:

1. local treatment: after being bitten by an ant, the local wound should be rinsed repeatedly with clean water immediately.soapy water, 10% ammonia water, 5%-10% baking soda waterflushing is better, flushing neutralizes and reduces the absorption of toxins. the wound can be applied externallybaicao oil, dexamethasone ointment, you can also use one piececrush jidesheng snake slices, mix with honey and apply externally, can alsoapply honey alone, has the effect of alleviating local symptoms. remember not to use herbal medicine for external application casually.

2. systemic treatment: those injured with obvious systemic reactions should go to a medical institution as soon as possible for anti-allergy and anti-shock treatment, with the purpose of controlling the occurrence of serious complications and providing symptomatic treatment.

(at the request of the interviewee, the names in the article are pseudonyms except for experts)

some information is referenced from: china disease control, guangdong disease control, guangzhou disease control, shenzhen disease control, etc.

author｜kui kui

typesetting | deep

cover | photo by the author

first picture｜123rf

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there are 763 new local cases of dengue fever in 7 days! some people even entered the icu, and many places have issued reminders for disease control.

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