The Delta variant of Covid is worrying the entire scientific community due to its greater contagiousness. Suffice it to say that precisely because of this mutation, cases are starting to rise again, especially in countries like the United Kingdom and Spain. The symptoms of this variant to watch out for, those that could be an alarm bell, are: runny nose, sore throat and headache. The most frequent symptom is sneezing. In short, nothing to do with the classic signs of Covid which include fever, dry cough and exhaustion.
Hence, the Delta variant – as he explains The print – exhibition symptoms less severe and more similar to the common cold, less easy to spot. The clinical picture that emerges from the reports collected by the British through the Zoe Covid Symptom application is very different from the previous one. The reported cases of “air hunger” are also lower. The only way to know if you have this variant is a specific test, through which the exact composition of the virus genome is determined and therefore to which strain it belongs. Sequencing, however, is not a publicly available analysis, but it is carried out only in specialized centers.
At the moment the only weapon that seems able to neutralize this mutation of the virus is the vaccine, but only when the cycle is completed. In fact, those who have only taken the first dose are less protected against Delta infection, regardless of the type of vaccine administered. Meanwhile, abroad, the variant is already having consequences: in the United Kingdom the positives are increasing exponentially, especially among partially vaccinated young people. From IsraelInstead, the news arrives that the effectiveness of the Pfizer vaccine against the coronavirus has decreased by a third due to the spread of this mutation.