CNNE 967245 - variantes vacunas coronavirus saint patrick's day
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Pfizer estudia si tercera dosis de la vacuna daría inmunidad ante variantes de covid-19
Perspectivas desde México
21:03 ET (02:03 GMT) 11 de marzo de 2021
Pfizer realiza estudios adicionales con una tercera dosis de la vacuna contra el covid-19, informó la Dra. Graciela Morales, líder de asuntos científicos y médicos para mercados emergentes de la división de vacunas de la farmacéutica. Morales dice que los análisis permitirán entender si una tercera dosis a los previamente vacunados  sería un método garantizaría inmunidad de largo plazo ante las variantes. LEE: La vacuna de Pfizer previene el covid-19 asintomático y la muerte, según muestran datos del mundo real de Israel
05:47 - Fuente: CNN
MÁS DE PERSPECTIVAS DESDE MÉXICO 16 videos
CNNE 967245 - variantes vacunas coronavirus saint patrick's day
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Pfizer estudia si tercera dosis de la vacuna daría inmunidad ante variantes de covid-19
05:47
En curso
- Fuente: CNN
WELLINGTON, CO - OCTOBER 11: Mexican migrant workers harvest organic parsley at Grant Family Farms on October 11, 2011 in Wellington, Colorado. Although demand for the farm's organic produce is high, Andy Grant said that his migrant labor force, mostly from Mexico, is sharply down this year and that he'll be unable to harvest up to a third of his fall crops, leaving vegetables in the fields to rot. He said that stricter U.S. immigration policies nationwide have created a "climate of fear" in the immigrant community and many workers have either gone back to Mexico or have been deported. Although Grant requires proof of legal immigration status from his employees, undocumented migrant workers frequently obtain falsified permits in order to work throughout the U.S. Many farmers nationwide say they have found it nearly impossible to hire American citizens for seasonal labor-intensive farm work. (Photo by John Moore/Getty Images)
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Trump dice que apoya el programa de visas H-1B
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En curso
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US President Donald Trump signs executive orders in the Oval Office of the WHite House in Washington, DC, on January 20, 2025. (Photo by Jim WATSON / POOL / AFP) (Photo by JIM WATSON/POOL/AFP via Getty Images)
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06:12
En curso
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Central American migrants queue at the Sagrada Familia shelter as they wait for the so-called La Bestia (The Beast) cargo train, in an attempt to reach the US border, in Apizaco, Tlaxcala state, Mexico on April 9, 2021. (Photo by PEDRO PARDO / AFP) (Photo by PEDRO PARDO/AFP via Getty Images)
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Migrantes podrían enfrentar arrestos en iglesias o escuelas, dice Trump
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- Fuente: CNN
Migrants remain stranded in Mexico after the cancellation of their CBP One appointment through the Paso del Norte international bridge to El Paso, Texas, United States, from Ciudad Juarez, Chihuahua state, Mexico on January 20, 2025. Minutes after his inauguration, US President Donald Trump said that he will issue a raft of executive orders aimed at reshaping citizenship and immigration issues stating that he will declare "a national emergency at our southern border" and that "all illegal entry will immediately be halted". (Photo by HERIKA MARTINEZ / AFP) (Photo by HERIKA MARTINEZ/AFP via Getty Images)
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En curso
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Migrants from a caravan in Tapachula, Chiapas state, Mexico, march while heading to the US border on January 20, 2025. US President Donald Trump was sworn in for a historic second term pledging a blitz of immediate orders on immigration aimed at re-shaping how the United States deals with citizenship and immigration, and the US culture wars as he caps his extraordinary comeback. (Photo by Isaac Guzman / AFP) (Photo by ISAAC GUZMAN/AFP via Getty Images)
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“Vamos a arriesgarnos aunque nos cueste la deportación”, dice migrante rumbo a EE.UU.
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En curso
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El polo magnético del norte de la Tierra está cambiando y los científicos no saben por qué
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En curso
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WASHINGTON, DC - JANUARY 20: Baron Trump (L) and Viktor Knavs attend an indoor inauguration parade at Capital One Arena on January 20, 2025 in Washington, DC. Donald Trump takes office for his second term as the 47th president of the United States. (Photo by Christopher Furlong/Getty Images)
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Barron Trump reacciona ante la multitud, luego de que su padre lo elogió en su celebración
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- Fuente: CNN
WASHINGTON, DC - JANUARY 20: U.S. President Donald Trump holds up an executive order after signing it during an indoor inauguration parade at Capital One Arena on January 20, 2025 in Washington, DC. Donald Trump takes office for his second term as the 47th president of the United States. (Photo by Anna Moneymaker/Getty Images)
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Trump asegura que Gobierno de Biden es el peor de la historia de EE.UU. y anula decenas de decretos
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Instalan más boyas en el Río Grande para frenar la migración
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Mapa del golfo de México, cuerpo marino rodeado por la costas de México, Estados Unidos y Cuba.
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¿Golfo de México o de América? Esto opinan los mexicanos
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TOPSHOT - An asylum seeker reacts while waiting for news on her CBP One appointments with US authorities before crossing through El Chaparral port in Tijuana, Baja California state, Mexico, on January 20, 2025. Minutes after his inauguration, US President Donald Trump said that he will issue a raft of executive orders aimed at reshaping citizenship and immigration issues stating that he will declare "a national emergency at our southern border" and that "all illegal entry will immediately be halted". (Photo by Guillermo Arias / AFP) (Photo by GUILLERMO ARIAS/AFP via Getty Images)
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Analista explica el alcance del cierre de la aplicación CBP One
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Un frío brutal se avecina para la segunda de toma de posesión presidencial de Trump
00:45
En curso
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