• Dr. David Della Morte Canosci


How have the symptoms of COVID-19 changed?

First of all, it must be said that the symptoms of COVID-19 vary in that once the virus has found a host, it spreads throughout the body. Some of the varying factors include age, sex, genetics, previous chronic diseases, and the state of the host’s immune system.


The symptoms of COVID-19 are different and can appear after an incubation period of 2-11 days and can last as long as 14 days.

Some of the most common symptoms are:

  • Fever equal to or greater than 37.5°C

  • Fatigue

  • Coughing

  • Respiratory difficulties

  • Loss or decrease of smell

  • Loss or decrease of taste

  • Runny nose

  • Sore throat


In addition to varying according to the affected bodily region, mutation of the genome is typical and completely normal in RNA viruses like COVID-19.

A variant of a virus is generated when, as it multiplies within the host's cells, it undergoes one or more modifications (known as ‘mutations’) within the genome, making it different from the original virus.

Mutations of this type have been observed since the beginning of the pandemic.

Some variants did not have a direct and significant impact on the survival of the virus, while others did.

Those who’ve had it contribute to its survival. The virus survives by becoming more contagious or by ‘circumventing’ the individual's acquired immunity as a result of natural infection or vaccine.

COVID-19 variants are born from the mutation of the protein present in the virus, which allows it to attach to the host body’s cells.

The Delta variant appears to present the same symptoms. The exception seems to be the Omicron variant, whose symptoms appear milder and of shorter duration.

The Omicron 2 variant has also recently developed and presents the same symptoms as the Omicron variant, but a greater level of contagiousness of up to 30% has

been noted.


If you’ve already had COVID or want to fortify your immune system, Palazzo Fiuggi has what you need.

Palazzo Fiuggi's Immune Boost programme aims to strengthen the immune system through a personalised regimen that includes natural therapies, detox treatments, and energising activities.

The benefits and objectives of this programme include rehabilitation for past infections and inflammatory or degenerative disorders.