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Why Pfizer and AstraZeneca’s protection has fallen over the years

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Why Pfizer and AstraZeneca's protection has fallen over the years

CAs explained in an article published by BBC News, a survey conducted in the United Kingdom analyzed positive PCR test results between May and July 2021 of more than one million people who received two doses of Pfizer or AstraZeneca vaccine against the novel coronavirus.

In the study, the researchers found that protection after two doses of Pfizer diminished from 88% within one month to 74% within five to six months. However, among those who received the AstraZeneca vaccine, the decline was from 77% to 67% in four to five months. According to experts, such a decrease in protection was predictable.

Read also: Pfizer Seeks US Approval for Booster Dose of Its Vaccine

However, the researchers note that while infections do occur in fully immunized people, vaccines do an excellent job of protecting populations from severe Covid and reducing deaths from the disease.

According to BBC Public Health England, the British government’s public health agency, about 84,600 deaths and 23 million infections have been prevented by the new coronavirus due to vaccinations.

Professor Tim Spector of King’s College London (KCL), head of the study, based on data from the country’s Zoe Covid epidemiological study app, says the results may explain recent infections reported by fully vaccinated people.

“Reduced protection is expected, and this is not a reason for not being vaccinated,” Spector says.

“Vaccines still provide a high level of protection for the majority of the population, especially against the Delta variant, so we still need as many people as possible to fully immunize.”

See also  Pfizer and Moderna vaccines may be linked to heart inflammation

The expert argues that in the coming winter, protection against infections may drop by up to 50% and that it may be necessary to take booster doses.

The UK is expected to start offering some people a third booster dose of the SARS-CoV-2 vaccine as early as September, but the government has yet to make an official decision.

“Many people may not need this. Many people may have received a natural booster vaccine because they already had a natural Covid infection, so they will essentially be taking three vaccines, ”Spector says.

“Therefore, this problem needs to be dealt with with much more care than simply [a terceira dose] the entire population, which would be a waste and ethically questionable given the resources we have. I think we need a more focused approach than last time, ”he concluded.

Read also: Brazil promotes third dose of vaccine for seniors in September

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Economy

The government will extend the tax cut on fuel. View new values

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The government will extend the tax cut on fuel.  View new values

The government will extend the tax cut on petroleum products for the next two months, according to CNN Portugal. But fix the values ​​and stop revisiting them every week.

The government will extend tax cuts on petroleum products in July and August to bring down the final price of fuel. CNN Portugal knows that this decision was approved this Thursday by the Council of Ministers and that it has new characteristics.

The current tax reduction applied only to the months of May and June, thus ending on June 30th. But as fuel prices remain very high, the government decided to extend the decision for another two months, thus covering July and August.

But the model is not exactly the same. The government decided to stop weekly reviews of ISP cuts, as it has done so far, and fix the cuts. Recall that the original goal was to achieve with the help of ISP the equivalent of reducing VAT from 23% to 13%. To do this, the government has launched a set of measures, which now intends to simplify.

Overall, as government sources have been able to confirm to CNN Portugal, the measures approved by the Council of Ministers will constitute a decrease of 28.2 cents per liter of diesel fuel and 32.1 cents per liter of gasoline.which is close to the current values.

According to data from the Directorate General of Energy and Geology from this Thursday, the average price of plain diesel fuel in mainland Portugal is currently 2,062 euros per litre. The average price of regular gasoline 95 is 2101 euros per liter.

See also  Easyjet strengthens its presence in the Portuguese market | Aviation

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Economy

Nasdaq down 30% since January, S&P 500 closes worst half since 1970 – ECO

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Nasdaq down 30% since January, S&P 500 closes worst half since 1970 - ECO





Nasdaq down 30% since January, S&P 500 closes worst half since 1970 – ECO
































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Jackpot for some depositors. Treasury certificates to pay 11% in July – IVF

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Jackpot for some depositors.  Treasury certificates to pay 11% in July - IVF





Jackpot for some depositors. Treasury certificates to pay 11% in July – IVF































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