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The British mutation attacks differently from the usual variant of the coronavirus.
This stems from a recent survey by the UK Statistics Office.
Those who are infected generally have more of the most common symptoms, with two clear exceptions.
The tests mark three genes in the coronavirus: protein N, protein S, and ORF1ab. A test is considered positive if at least one of the N or ORF1ab genes is present. Protein S alone is not seen as a reliable indicator of covid-19, according to the study by the British ONS, Office for National Statistics.
Photo: GETTY IMAGES
Symptoms differ
The British mutation, called B117, has changes in the S gene and therefore does not mark this protein in tests. In this way, laboratory personnel can distinguish those infected with the mutation from those affected by the common variant.
The study includes British patients who tested positive between November 15 and January 16. They have had to report the symptoms they have suffered.
Two less common symptoms
The big picture is clear: B117-infected patients are more likely to have common coronary symptoms such as coughs, muscle aches, fatigue, and a sore throat.
However, it is less common for them to lose smell and taste.
This is the result in detail, calculated in the proportion of each group of patients who report a certain symptom:
Cough
Mutation: 35.1 percent. Others: 28.3 percent.
Fatigue
Mutation: 32.5 percent. Others: 29.1 percent.
Photo: NEWS AGENCY NTB / TT
Among those affected by the British mutation, more suffered from fatigue.
Muscle pains
Mutation: 25 percent. Others: 22 percent.
Sore throat
Mutation: 21.9 percent. Others: 19.1 percent.
Fever
Mutation: 21.7 percent. Others: 19.3 percent.
Headache
Mutation: 31.5 percent. Others: 30.3 percent.
Diarrhea
Mutation: 7.4 percent. Others: 6.7 percent.
Shortness of breath
Mutation: 12.4 percent. Others: 12.1 percent.
Nausea vomiting
Mutation: 10.1 percent. Others: 10.1 percent.
Photo: Berit Roald / TT
The most common symptom of the mutation was coughing.
Abdominal pain
Mutation: 6.7 percent. Others: 6.7 percent.
Loss of taste
Mutation: 16 percent. Others: 18.9 percent.
Loss of odor
Mutation: 15 percent. Others: 18.6 percent.
Teacher: “Large amounts of viruses”
The differences in symptoms could possibly be explained by the fact that the virus mutation spreads faster in the body and leads to a stronger infection, according to The Guardian.
“This variant is more contagious and infected people appear to have higher amounts of virus, which means they produce more virus,” Lawrence Young, professor of molecular oncology at the University of Warwick, told the newspaper.
– It can cause the infection to spread further through the body and can be behind more coughing, muscle aches and fatigue.
The British mutation, as well as the South African and Brazilian mutations, are all considered more contagious than the common variant of the coronavirus.
In Sweden, 95 cases of the British mutation and three cases of the South African one were found on Tuesday. 29 of the first-mentioned cases lack travel connection, according to the Swedish Public Health Agency.
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