The Dangers Of Vaccines That Commenly Used

Vaccines refer to biologicalproducts made from various pathogenic microorganisms for vaccination. Vaccinesmade of bacteria or spirochetes are also called bacteriocin. There are twotypes of vaccines: live vaccines and dead vaccines. Commonly used live vaccinesinclude BCG, polio, measles, and plague. Commonly used dead vaccines arepertussis vaccine, typhoid vaccine, meningitis vaccine, cholera vaccine and soon. The dangers of vaccines refer to the adverse reactions that may result. Sothe dangers of vaccines generally is that the injection site is red, swollenand painful, and it can even cause allergic symptoms. Here are the dangers ofvaccines that commonly used.

The vaccine for COVID-19 is themost dosed vaccine in China since 2020, and it is relatively safe. The vaccinescurrently on the market are all inactivated vaccines. Moreover, there arecurrently certain restrictions on the people who are vaccinated. For example,for those who are pregnant and pregnant, and who are younger than 18 years oldor older than 59 years old, there is no requirement for vaccination for thetime being. Therefore, for those patients who can be vaccinated, or normalpeople, there is no obvious clinical discomfort or serious damage. Of course,after the injection of the COVID-19 vaccine, due to individual differences, thevaccinated may have serious adverse reactions such as anaphylactic shock,fever, and laryngeal edema.

1. Anaphylactic shock

Anaphylactic shock is a severesystemic allergic reaction triggered by the immune mechanism within a shortperiod of time after some external antigenic substances enter the sensitizedbody. Often life-threatening. Anaphylactic shock may occur after beingvaccinated against COVID-19. In terms of treatment, it is necessary to ensurethat the patient's airway is open and oxygen is given. If airway obstructionoccurs, immediate tracheal intubation or bedside tracheotomy is performed. Foranti-allergy and its symptomatic treatment, drugs such as chlorpheniramine orpromethazine are commonly used.

2. Fever

After the vaccine enters the humanbody, the antigen information in it is processed and transmitted to the immunecells in the nearby lymph nodes. After the immune cells are fully activated,antibodies and cellular immunity will be produced. activated by the vaccine. Ifthe body temperature is lower than 38.5°C, physical cooling or antipyretics canbe taken if necessary, and the body temperature usually returns to normal after1-2 days. If the body temperature is higher than 38.5°C, or it lasts for a longtime, or is accompanied by other symptoms, you should go to a medicalinstitution in time.

3. Laryngeal edema

Laryngeal edema is the submucosalinfiltration of tissue fluid in the laxity of the larynx. Its onset is rapid,especially in patients with allergic hereditary vascular neuropathies, andoften occurs within a few minutes of laryngeal stridor, hoarseness, difficultybreathing, and even suffocation. For patients with laryngeal edema after injectionof the new crown vaccine, they should fast, immediately give sufficient steroidhormones, and spray 1:2000 epinephrine locally in the throat to make the edemasubside as soon as possible. For those with severe laryngeal obstruction,tracheotomy should be done in time.

Live attenuated measles vaccine isa biological product made by artificially weakening or eliminating thevirulence of measles virus. This vaccine strain virus is very weak, but it canstill be recognized by the body and produce immunity, which will last for aperiod of time. When exposed to the measles virus again, the body can quicklyrecognize and produce an immune response to suppress and clear the measlesvirus, thereby preventing measles. After receiving live attenuated measlesvaccine, common adverse reactions are redness, pain, and mild fever at theinjection site. A small number of vaccinated patients will have symptoms ofsevere redness, swelling and severe fever at the vaccination site, andsymptomatic treatment can be performed.

1. Pain or redness

Symptoms of pain or redness at thevaccination site may occur after the vaccination. The pain is obvious whentouched, usually occurs within 24 hours after the inoculation, and in mostcases it will disappear after 2-3 days. If pain or redness persists, pleaseseek medical attention in time and take corresponding measures under theguidance of your doctor.

2. Fever reaction

Fever symptoms may occur within 1-2weeks after vaccination. If the body temperature is slightly elevated, it isusually a temporary fever reaction, which will quickly subside in a short timewithout treatment; if the body temperature is significantly elevated, takeantipyretics or apply physical methods such as ice packs for symptomatictreatment as prescribed by the doctor.

3. Very rare adverse reactions

Thrombocytopenic purpura.

The dangers of vaccines exist undernormal circumstances, but the benefits of vaccines are still more than the dangers.We should scientifically avoid the dangers of vaccines. At the same time, itshould also be noted that some adverse reactions are not actually caused byvaccines, but are coincidental reactions of other diseases.