Worldwide delta In form of Type more contagious of coronavirus And so it is this that causes the most concern among the scientific community. Fortunately, the vaccines pfizer u astraZeneca It has proven its effectiveness against it.
However, the vaccination schedule for vaccination against this mutation must be completed with two doses. In addition, both Pfizer and AstraZeneca also proved capable of including the Alpha and Gamma variants.
If, as we mentioned at the beginning, the delta variant is the one that worries the scientific community the most, it is because the SARS-CoV-2 variant, which is native to Wuhan China, caused the infection of 2.5 people. On average, the delta variant can result in 5 to 8 transitions.
Likewise, its symptoms can be somewhat easily confused with those of the common cold: runny nose, headache, sore throat and fever, although it does not cause a cough or loss of smell. This can make people less alert and leave without taking necessary hygiene measures.
The alpha version, for its part, emerged in September 2020 and has spread to at least 170 countries today. Although it is less contagious than Delta. And Gamma was also registered in November of 2020, and today cases are identified in 71 countries, mostly the Americas, Europe and Southeast Asia.
Again, most vaccines from all laboratories protect against both gamma and alpha forms, but only the Pfizer and AstraZeneca vaccines show efficacy against delta.
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