Omicron also changes the symptoms of Covid: from a runny nose to a headache, to the loss of taste and smell

Much more contagious, but also (apparently) capable of causing less severe disease. There variante Omicron it is so complex that it has radically transformed the original SARS-CoV-2 virus. THE symptoms, in fact, they appear decidedly different and much milder, despite Omicron’s ability to spread is able to partially overcome the vaccine barrier as regards contagion.

Read also> Omicron, what are the symptoms: «Similar to a cold». Here are the differences and how to tell them apart

Omicron, the much more contagious virus

As Simone Pierini writes for Il Messaggero, several studies carried out around the world have shown that, unlike the original virus, the Omicron variant seems to affect the bronchi more than the lungs. A study by the University of Hong Kong has made it possible to establish an Omicron replication speed equal to 70 times that of the Delta variant. One explanation could come from the fact that with Omicron, the virus tends to affect the bronchi more than the lungs.

Omicron, milder symptoms?

Omicron infection in the lungs appears empirically much less than that of the original virus and this could indicate a much less severe disease. Common symptoms of those infected with the Omicron variant include sore throat, runny nose and headache. Also for this reason, the British health expert Tim Spector explained: “If you have all these symptoms in this period, it is quite likely that it is Covid. For most people, the disease is mild or asymptomatic, but very serious illnesses can still develop for those who are not vaccinated. If you have cold-like symptoms, take a test. ‘
In Great Britain, where Omicron has already been dominant for at least a week, the average cure for patients is between five and seven days. However, some symptoms, such as cough and fatigue, may persist for longer, and in severe cases, patients have experienced shortness of breath over a period of nearly two weeks.

Compared to the original virus and previous variants, epidemiological investigations in Great Britain have allowed us to note a significant percentage reduction in some typical symptoms. Fever and cough are much less common, while symptoms such as headache, sore throat, fatigue and sneezing are more common.

Omicron, a typical symptom of Covid gone?

The latest updated report from the UK Department of Health also provided some laboratory evidence indicating biological differences between Omicron and Delta, starting with the mechanisms of viral entry. Studies on the symptomatology of patients affected by Omicron have shown a surprising fact: the typical symptom of loss of taste or smell has been significantly reduced.

Omicron, shorter incubation

Omicron’s extraordinary diffusion capacity may depend on incubation times. Already the Alpha and Delta variants had shown a shorter duration of the virus incubation. According to the WHO, the original SARS-CoV-2 could have very different incubation times (from two days to two weeks), which were significantly reduced with Delta and especially with Omicron (with the latter variant the incubation time is estimated between three and five days).

Omicron, milder symptoms and vaccines

The milder symptoms of Omicron could be due to two reasons: a less aggressive virus or the effect of the vaccine barrier. In Great Britain, where infections have long exceeded 100 thousand cases per day, most of the positives appear asymptomatic or paucisymptomatic. Across the Channel, however, there are good immunization rates and, in the face of the Omicron threat, the third booster dose of vaccine seems to provide good protection. Also for this reason, many countries have decided to reduce the time for the recall: there are those who have even approved it three months after the second dose, while Italy has shortened the time to four months.


Last updated: Sunday 26 December 2021, 11:04 pm

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Omicron also changes the symptoms of Covid: from a runny nose to a headache, to the loss of taste and smell

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