Yes, a PCR test detects the presence of viral material in the body, but does not determine how contagious a person who has the virus is
In general, there are a number of factors that can cause PCR tests to be less accurate than under ideal conditions. Also, the accuracy depends on the PCR test itself - its design and quality. Therefore, of course, false positive and false negative results can occur. But if the test is given in a professional laboratory, this rarely happens. And, of course, the clinical picture of the patient is also important and is always taken into account. Doctors don't rely solely on test results. PCR tests are not perfect, but they are considered the gold standard in diagnosing many viruses. Together with an antibody test, this is the best that humanity has so far.

Everywhere they talk about PCR tests, but nowhere does it say what happened to the DNA samples taken during the PCR tests.
Is it true that the Portuguese court recognized PCR tests as fake, and quarantine illegal?
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Yes. they can
Such projects already exist. Meta also has the money to create such a project

At first it will be just a copy of existing projects with some features
How Meta could muck up the metaverse
How to Develop a Metaverse
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Russia
Ukraine cannot defeat Russia with an army five times larger, which also has nuclear weapons.

Allies will only help with weapons and money. They will not go to war themselves, because nuclear weapons could be used against them.
Experts called the condition of russia's strategic victory over Ukraine
How the Ukraine war might play out in 2023
Accuracy 20
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First it will restore the USSR, then it will start a war with China.
After the coup in Ukraine in 2014 and the failed coup in Belarus in 2020, Russia realized that if nothing was done, the country would face war. Therefore, an association of countries like the European Union will be created. Belarus will be the first to enter it. Due to the sanctions in the country, almost the entire high-tech sector depends on supplies from China. With sanctions, high levels of corruption, high taxes and the elites' disinterest in change, Russia will not be able to resist the Chinese economy. Eventually, China will displace all competitors, including domestic companies, and will dominate the country. There is no progress in creating a competitive economy. Chinese specialists will move to the country en masse, displacing Russian specialists. When Russia tries to restrict China, China will act militarily.

Moscow takes all taxes for itself, and then distributes them by region. The regional elite is not at all interested in the growth of business in the regions, since its well-being depends on the ability to ask Moscow, and not on the growth of the number of enterprises. It is impossible to conduct business legally in the regions without paying bribes and fines. The legislation allows businesses to be blocked for 30 days in case of violations, so businesses pay bribes to avoid being blocked. A 47% tax and a 13% credit rate also do not contribute to business growth. Compared to the Chinese tax of 12% and the credit rate of 0.02%. Despite the fact that China spends money on cargo transportation, it is more profitable to produce and buy in China than in Russia.
The East is a delicate matter. The war has increased Russia's economic dependence on China
What does China mean for the Russian economy
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