Comparison of novel coronavirus symptoms: the difference between Delta, Omicron and a cold?
Time: Jan 25, 2022

How to distinguish between Delta, Omikron, general Corona Virus Disease 2019, and cold symptoms?

The most common symptom of Corona Virus Disease 2019, which is easily distinguishable from other diseases, is fatigue, which usually lasts for a long time.

According to the Mayo Clinic, the fatigue caused by the novel coronavirus is prolonged and severe, and can be used as a distinguishing indicator: general physical discomfort or a cold, you can restore energy by resting, but COVID-19 requires a longer recovery period.

What are the characteristics of Omicron?

Omicron's symptoms are relatively mild and have been likened by many physicians to "a mild cold." Omicron's most common symptoms include a dry cough, runny nose, sore throat and, in some cases, lower back pain, according to South Africa's tally of cases.

Compared with the original virus strain and variant virus of the novel coronavirus, whether children or adults diagnosed with Omicron, it is more common to experience digestive system discomfort, such as vomiting and diarrhea, because Omicron is more likely to infect patients. digestive tract. In addition, the loss of smell and taste is common in the new type of coronavirus pneumonia, but it is less obvious in the infection of Omicron.

What are the characteristics of Delta?

Some of Delta's symptoms are more severe and have been likened by many physicians to a "bad cold." Common symptoms of Delta are headache, sore throat, runny nose, and fever; less common symptoms are cough, diarrhea, and loss of smell and taste are also rare in Delta.

Comparison of infectivity of Delta, Omicron, and General Novel Coronavirus Pneumonia

According to the US CDC and UK research, the infectivity (R0 value) of the novel coronavirus variant virus is compared as follows:

Original novel coronavirus infectivity: 1 to 3

British variant virus alpha: 1 to 5 (50% more infectious than the original virus)

South African variant virus beta: 1 to 5 (50% more infectious than the original virus)

Indian variant virus delta: 1 to 7 (110-140% more infectious than the original virus)

New variant virus Omikron: 1 pass 50 (500% more infectious than the original virus)

Although Omicron has mild symptoms, the virus is highly contagious, with an R0 value of 50.

Therefore, as long as the number of severe cases and deaths is not close to zero, after multiplying, the total number of severe cases will still overload medical resources, and the epidemic prevention measures that should be taken are essential.

Protective clothing, medical protective masks, safety protective gloves, and COVID-19 antigen rapid test kit are still the personal protective equipment that needs to be focused on.

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