During the full-blown and progressive phase, most patients have only mild fever, cough, fatigue, and no pneumonia and recover on their own after a week. Some cases have conjunctivitis, signs of red inflammation of the toes ...


11/23/2021 4:09:29 PM

I) Symptoms of SARS-CoV-2 virus day by day?

Depending on the body and resistance, the symptoms of corona infection from day to day are different for each individual, but these symptoms are evident from 2-14 days, an average of 5-7 days. Initially, the patient may experience fever, dry cough, fatigue, and sore throat. Some cases have symptoms of olfactory dysfunction or numbness of the tongue…

During the full-blown and progressive phase, most patients have only mild fever, cough, fatigue, and no pneumonia and recover on their own after a week. Some cases have conjunctivitis, signs of red inflammation of the toes ...

In some cases, pneumonia, severe pneumonia, progressing to severe acute respiratory failure, septic shock, acid-base balance disorder, coagulopathy, depression, psychological disturbances, impaired renal function organs leading to death. Mortality occurs more frequently in the elderly, immunocompromised, and chronic comorbidities.

After the full-blown period 7-10 days, if there is no ARDS, the patient will have no fever, clinical signs will gradually return to normal and recover.

  • Day 1 to Day 3:

Symptoms are similar to those of a common cold.

Mild sore throat, no fever, no fatigue.

Eat and drink normally.

  • Day 4: 

Throat begins to ache slightly, the person is lethargic.

Start hoarse.

Body temperature increases slightly.

Mild headache, mild diarrhea.

Starting to lose appetite.

  • Day 5:

More sore throat, more hoarseness.

Slight increase in body temperature

Tired body, aching joints.

  • Day 6: 

The symptom of the 2019 Coronavirus is the onset of a low-grade fever.

Cough with phlegm or dry cough without phlegm.

More sore throat, pain when swallowing, when eating or speaking.

Fatigue, nausea.

Diarrhea, possibly vomiting.

Back or fingers aching.

  • Day 7: 

High fever below 38o.

More cough, more phlegm.

Whole body aching.

Shortness of breath.

More diarrhea and vomiting.

  • Day 8:

Fever around 38o.

Shortness of breath, wheezing, heaviness in the chest.

Cough continuously, talk a lot, mute.

Joint pain, headache, back pain.

  • Day 9: 

Conditions such as fever, cough, shortness of breath, heaviness in the chest… become more severe.

II) Answer questions about the symptoms:

1. Does Covid-19 have a runny nose?

Coronavirus is often confused with symptoms of the common flu. It should be noted that people with common flu only show symptoms of sneezing, runny nose, runny nose, unlike Covid 19, the patient will have symptoms such as cough, dry cough, persistent cough, fever... but not snivel.

2. How many degrees does Covid 19 have?
After the incubation period (between 2 and 14 days), symptoms of Covid-19 infection begin to appear such as a dry cough and low-grade fever. Fever is suspected of Covid 19 is from 38.1oC - 39oC or 100.5oF - 102.1oF, often accompanied by decreased taste and smell function.

For 1 week, the patient will be treated and isolated at home if the symptoms are mild or moderate and resolve on their own. If symptoms persist, more severe symptoms appear, requiring hospitalization, intensive care and invasive mechanical ventilation. Covid 19 has an unpredictable development, especially in elderly patients with comorbidities. Clinical manifestations vary from completely asymptomatic to severe symptoms and death.

3. Symptoms of covid-19 virus are stuffy nose?
According to a report by the World Health Organization (WHO), about 5% of patients with Coronavirus have symptoms of nasal congestion. It's not the most common sign of illness, but it's a symptom that can easily be confused with colds and flu. In fact, many signs of Covid 19 are similar to flu such as headache, body aches, fatigue. Some other symptoms can be cold or allergy-like, like sore throat, cough, fever, and stuffy nose.

Symptoms of covid-19 virus cough with phlegm?

According to a report released by the World Health Organization (WHO) showed that, out of 55,924 people with Covid 19 being monitored, more than 33% of patients showed signs of coughing up sputum, thick mucus produced from the lungs. This cough symptom comes from the chest area and the inflamed bronchial tubes are very uncomfortable, not an itchy throat that makes the patient clear his throat.

4. Why have covid 19 but no symptoms?
In addition to the above-listed CarePlus signs, asymptomatic people infected with Coronavirus are those who are still carrying the Covid-19 disease in their body but are still healthy or have been infected with the pathogen but do not have any other signs or symptoms. usually.

The explanation for this phenomenon is that the body has a strong resistance that inhibits the growth, prevents the virus from developing and multiplying, or the number of microorganisms invading the body is not large enough to cause disease, so there is no infection. symptoms of the disease. In this case, the patient has not shown any signs of illness, but if for some reason the resistance is reduced, the body will quickly be attacked by the virus and cause illness.

5.Signs of Covid-19 skin rash
According to researchers, skin rash caused by Covid-19 is a common sign and cannot be ignored to recognize the SARS-CoV-2 virus. Skin manifestations of patients infected with COVID-19 are diverse, including:

Feet and fingers are sprained;

Eczema in the neck and chest area; oral eczema;

A lumpy, vesicular rash;


Most lesions heal on their own after about 10 days, of which the 5 most noticeable and common manifestations are:

A maculopapular rash (47%).

Urticaria (19%).

COVID-19 toe (19%).

Vesicular or varicella-like reactions (9%).

Livedo or necrotizing vasculitis (6%).

People who do not belong to the group of autoimmune diseases but are using immunosuppressive drugs such as corticosteroids or biological drugs ... also need to be vigilant to prevent and avoid COVID-19 because this is a high-risk group. infection.

6. Signs of Covid-19 sore throat
Sore throat, dry cough, even with thick and foamy sputum, are most likely among the typical, severe and common symptoms of Covid-19. This sign is often confused with a common sore throat, but if it is not detected in time, the patient will instead self-treat by taking common sore throat medicines, which will lead to more severe symptoms than fever. If the patient has difficulty breathing, the patient should immediately seek medical examination at medical examination and treatment establishments designated by the State and the Ministry of Health.

7. Symptoms of Covid-19 nausea
Unlike the symptoms mentioned above, nausea usually appears 1-2 days before the patient develops a fever. However, this phenomenon can be caused by other health problems.

8. Symptoms of Covid-19 runny nose
COVID-19, allergies, flu, colds, etc. are all diseases that affect the respiratory tract causing similar symptoms, so it is difficult to distinguish them. There are many causes that can cause acute respiratory infections such as seasonal influenza virus, syncytial virus, etc.

According to experts, it is possible to distinguish COVID-19 from other diseases through 3 characteristic symptoms and the most obvious are fever, persistent dry cough and difficulty breathing. Runny, runny nose are common signs of flu, not COVID-19.

9. Are covid symptoms sneezing?
Sneezing is a typical symptom of a cold or flu, but not a typical sign of COVID-19. It is often difficult to distinguish COVID-19 from the flu, so experts recommend that everyone get a flu vaccine every year to minimize the risk of getting the flu. In addition, if you don't get the flu shot but unfortunately get COVID-19, the patient will show symptoms of fever, cough, and sneeze... The symptoms at this time will make the sick person and those around them even more worried. settle. Therefore, getting vaccinated against flu early and fully will not worry about confusing symptoms with Covid-19, if any.

10. Symptoms of Covid-19 difficulty breathing
Symptoms of shortness of breath, shortness of breath in the chest are the most typical warning signs of COVID-19. The SARS-CoV-2 virus directly affects the lungs, controlling the respiratory system leads to symptoms of shortness of breath, chest tightness... With symptoms of cough and shortness of breath, do not be subjective because of the possibility of COVID-19 infection. is very high. At this time, you should go to the hospital for a timely examination before the condition becomes serious.

12. Symptoms of Covid-19 diarrhea
According to the latest research by scientists at the University of Oxford (UK), patients with COVID-19 do not have too many respiratory disorders but have abdominal pain. The cause may stem from pneumonia (in the lower lobes of the lungs) caused by infection with the SARS-CoV-2 virus. In the elderly group, if the level of COVID-19 is severe, the digestive symptoms appear more severe.

CarePlus will continue to update this list as we learn more about COVID-19 from CDC sources.... Elderly and people with serious underlying medical conditions such as heart or lung disease or diabetes appear to be at higher risk of developing more serious complications from COVID-19 disease.

Therefore, with the sharing of symptoms of Covid-19 infection, to protect yourself, your family and the whole community, each individual should strictly comply with the state's regulations on distance if any, and at the same time well implement the 5K slogan.

If they detect signs of suspicion of COVID -19 , Customers need to perform a rapid antigen test, RT-PCR test and Register for remote consultation service for people infected with COVID -19 with a service fee 270,000 VND.

CarePlus was announced by HCDC and the Department of Health as one of the trusted clinics that can provide COVID-19 risk screening services for people wishing to leave HCM city.