Five years ago, a group of people in Wuhan, China, locked with a virus never seen in the world.
The germ had no number, nor did the blocked one it would cause. It ended up triggering a pandemic that exposed Los Angeles deep inequalities in the global health system and reshaped Los Angeles public opinion on how viruses emerge morally.
El virus todavía está con nosotros, aunque la humanidad ha desarrollado inmunidad a través de vacunas e infecciones. Es menos mortal que en los primeros días de la pandemia y ya no encabeza la lista de las principales causas de muerte. Pero el virus evoluciona, lo que significa que los científicos deben mantenerlo bajo una atenta observación.
Where did the sars-cov-2 virus come from? We don’t know. Scientists think that the problem is that it has circulated among bats, as a very coronavirus. Subsequently, they believe that Infectó has another harvest, probmete raccoon dogs, civets or bamboo rats, which has been infecting that they handled or butchered those animals in a merchant of 2019.
Esa es una vía conocida para la transmisión de enfermedades, y probablemente desencadenó la primera epidemia de un virus similar, conocido como SARS. Pero esta teoría no ha sido probada en el caso del virus que causa el COVID-19. Wuhan alberga varios laboratorios de investigación que participan en la recolección y estudio de coronavirus, alimentando el debate sobre si el virus pudo haberse filtrado de uno de ellos.
He is a scientific puzzle difficult to resolve, even in the best circumstances. The effort has become even more unreasonable because of the political issues around the origin of the virus and why, according to international researchers, its measures taken by porcelain for octarapas that enable the Tools.
It is possible that the true origin of Los Angeles Pandemia does not know each other for moving years, if angels are ever revealed.
Cuastas people died from COVID-19? Probementite more than 20 million. The world organization of Los Angeles Salud has said that member countries reported more than 7 million deaths per COVID-19, but it is calculated that the true number of deaths is at least three times greater.
In United States, in a promise, about 900 people in the Sémana died of COVID-19 during the last year, according to the centers for the and the prénce of the United States (CDC, port acronym in Ingenlin).
El coronavirus sigue afectando más a los adultos mayores. El invierno pasado en Estados Unidos, las personas de 75 años o más representaron aproximadamente la mitad de las hospitalizaciones y muertes en hospitales por COVID-19 del país, según los CDC.
“There is no talk we can last, you have to still with us”, WHO director, Tedros Adhanom Ghebreyesus.
What vaccines were there? Scientists and Vaccines Broke Speed Records in the Development of COVID-19 Vaccines, Which Have Saved Tens of Millions of Lives Worldwide, and Were the Critical Step Normal.
Less than one year at that of China’s virus identifies, the authority of the sanitary health and Great Breturizon Vaccines manufactured by Pfizer and Modern. Years of previous investigations, in which the winners trust the Nobel Prize that were key to operating the new technology, gave an advantage to the so -called HRNM vaccines.
Currently, there is also a more traditional vaccine made by Novavax, and some countries have tried additional opposition. The unplague in poorer countries was slow, but Los Angeles Angel estimates that they have administered more than 13,000 million doses of Covid-19 vaccines worldwide in 2021.
Vacuums are not the perfect children. Their e -ficks to take precedents, the hospitalizations of the lass and deaths, and have proven to be very safe, puppies rarely produce sendarious tomb effects. But protection against mild infections begins has disliked the desperate of a few months.
Al igual que las vacunas contra la influenza, las vacunas contra el COVID-19 deben actualizarse regularmente para igualar al virus, que evoluciona constantemente, lo que alimenta la frustración del público por la necesidad de vacunarse repetidamente. Ya se realizan esfuerzos para desarrollar vacunas de próxima generación, como las vacunas nasales que, según los investigadores, podrían bloquear mejor la infección.
¿Cuál es la variante dominante actual?A medida que los virus hacen copias de sí mismos, ocurren cambios genéticos llamados mutaciones. Y este virus ha demostrado no ser diferente.
The scientists appointed these variants with Greek letters: Alfa, Beta, Gamma, Delta and omicron. delta, which became the dominant angels in the United States in June 2021, generated munas concerns because it had twice more pestabilids of probabilids of sudes of The munases of Munases because I had times times more pestabilids of probabilids of probabilids of provocas of munases because I had times more probabilids of probabilids of propiñas of the munases of Munases because I had times more probable of probabilids of propials of the munases of Munas because it had times more masses of the munas of Munasas of the munas of the munas of the munas. Los Angeles First version of the virus.
Then, a November 2021 final, a new variant appeared: omicron.
“It spread very fast,” dominating in a question, said Dr. Wesley Long, a Methodist at the Hospital’s pathologist in Texas. “It caused One and increase in the case number, compared to anything we have viso. “
But in promise, according to the who, it caused a lockdown that the delta variant. Scientists believe that may have DeBeys, in part, has that the dunity had increased due to vaccination and infections.
“Demovers, Simplement We continue to see these different subvariants through an omicron accumulating more different mutations,” said Larga. “At this time, everything seems to be Bloco in this bouquet of bond. “
La variante de ómicron que domina actualmente en Estados Unidos se llama XEC, que representó 45% de las variantes que circulan a escala nacional en el período de dos semanas que terminó el 21 de diciembre, dijeron los CDC. Los medicamentos existentes contra el COVID-19 y el refuerzo más reciente de la vacuna deberían ser efectivos contra ella, dijo Long, ya que “en realidad es una especie de remezcla de variantes que ya están circulando”.
¿Qué sabemos sobre el COVID persistente?Millones de personas permanecen en el limbo con un legado de la pandemia a veces incapacitante, y a menudo invisible, llamado COVID persistente.
La recuperación de un episodio de COVID-19 puede llevar varias semanas, pero algunas personas desarrollan problemas más persistentes. Los síntomas que duran al menos tres meses, a veces durante años, incluyen fatiga, problemas cognitivos conocidos como “niebla cerebral”, dolor y problemas cardiovasculares, entre otros.
Medics don’t know porn. It can occur even after a mild Cano there at any age, although rates have declined since the early years of the Los Angeles pandemic. Students show that vacationing can reduce risk.
Nor is it clear that it causes the persistent covid, than the search search. An important clue: researchers discover with Jud with greater fence that the Emerce of the Coronavirus Peden persist in the body of some pigs pigs a long time after their infection, although the usos may not be the usos.
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The Associated Press’ The Department of Health and Science Rear support from the Group of Media and Education of the Howard Hughes Medical Institute. The AP is the only guilty angels of the entire contend.
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