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A distribution driver passes by a regional butcher in Wuhan, China. JD

The 55-year-old native Hubei province was the first known instance of COVID-19 in the human being (though the virus hadn"t obtained that surname yet), and also one of hundreds determined by Chinese authorities in 2019, follow to an examination by the southern China Morning Post.

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However, Chinese medical experts didn"t realize they were dealing with a new virus till late December. Many cases were most likely backdated after health authorities take it samples from doubt cases, according to the investigation.

December 31, 2019: Chinese wellness officials informed the civilization Health Organization about a cluster of 41 patients through a secret pneumonia in Wuhan.


The place of Wuhan in China's Hubei province. Ruobing Su/Business Insider

"The cause of the an illness is not clear," The People"s everyday newspaper, a state-owned publication, stated at the time, follow to Reuters.

Researchers think the coronavirus originated in bats, climate may have jumped to an intermediary types that happen it to people.

January 1, 2020: Chinese authorities closed the Huanan Seafood all Market, to which many situations in that at an early stage cluster had links.


The Huanan Seafood Wholesale industry in Wuhan, China, to be sealed turn off after being established as the possible epicenter of the brand-new coronavirus. photo by Noel Celis/AFP via Getty photos

Although the industry was originally suspected to be the site where the outbreak very first started, research has suggested that that simply enhanced transmission via very early superspreader event.

China has since banned the buying, selling, and transportation the wild pets in markets, restaurants, and also online marketplaces.

January 7: Chinese authorities figured out the virus that caused the illness as a new type of coronavirus.


A glass version of the novel coronavirus, by artist Luke Jerram on march 18, 2020 in Bristol, united Kingdom. The model is about 1 million times bigger than the actual virus. Finnbarr Webster/Getty images

At that time, the researchers dubbed the virus 2019-nCoV.

Coronaviruses obtain their surname from your appearance under a microscope: They appear to be covered with points the look choose a crown (hence, corona). Various other viruses in the coronavirus family reason pneumonia, SARS, and also some typical colds.

January 11: China tape-recorded its very first coronavirus death. Chinese researchers additionally published the virus' hereditary sequence.

patients infected with the coronavirus rest at a momentary hospital converted from the Wuhan Sports facility in China's Hubei province, February 17, 2020. Xiao Yijiu/Xinhua News agency via AP

The an initial person to dice was a 61-year-old man who was a constant customer at the Huanan market.

After researchers published the hereditary sequence that the coronavirus, at least two companies quickly got come work creating vaccine candidates: Moderna and BioNTech.

Thai public-health policemans operate a health and wellness checkpoint v thermoscan in ~ Suvarnabhumi international airport in Bangkok, Thailand, top top February 18, 2020. AP Photo/Gemunu Amarasinghe

A 61-year-old female traveler in Thailand was diagnosed top top January 13. She"d recently spent time in Wuhan. Airports in Hong Kong, Singapore, Thailand, and South Korea began to display passengers because that fever.

The male left Wuhan and also landed at the Seattle-Tacoma worldwide Airport top top January 15. He report to a clinic with pneumonia symptom on January 19, then to be diagnosed v the coronavirus a job later.

January 23: Chinese authorities placed the 11-million-person city the Wuhan under quarantine, and also the remainder of the Hubei province followed days later.

A man crosses an north highway road on February 3, 2020, in Wuhan. Getty pictures

The Hubei lockdowns influenced an estimated 60 million people, making China"s activity the largest quarantine in history at the time.

Still, this lockdown came also late to avoid the coronavirus from spreading throughout the province and beyond its borders. Wuhan public official had enabled a district in the city to organize a Lunar brand-new Year collection of 40,000 households on January 18, follow to the gaue won Times.

A warehouse that medical materials in Wuhan top top February 4, 2020. Costfoto/Barcroft Media via Getty images

The WHO"s "global public-health emergency" determination has been approximately since 2005 and also had to be used five times before.

Those instances to be the Ebola outbreak that began in 2013 in West Africa, another Ebola outbreak that"s been recurring in the autonomous Republic of Congo due to the fact that 2018, the 2016 Zika epidemic, polio in war zones in 2014, and the swine-flu pandemic in 2009.

January 31: chairman Donald trump banned international nationals indigenous entering the united state if they'd remained in China within the prior two weeks.

A passenger receives a temperature check prior to boarding a trip in Tokyo, Japan, ~ above January 21, 2020. Tomohiro Ohsumi/Getty images

Several of chairman Donald Trump"s top advisers — consisting of Anthony Fauci, HHS Secretary Alex Azar, and CDC manager Robert Redfield — had urged him come limit take trip from China, follow to journalist Bob Woodward.

A police officer checks the temperature of motorists at a checkpoint in Quezon City, subway Manila, Philippines, on march 16, 2020. Eloisa Lopez/Reuters

The 44-year-old man, a Wuhan resident, had actually traveled come the Philippines on January 21 with a 38-year-old woman.

Hours prior to announcing the death, Philippines federal government officials said they would certainly temporarily half all non-Filipino travelers indigenous China, Hong Kong, and also Macau.

workers sanitize streets where homeless people are life in the Tenderloin ar of san Francisco, California, march 20, 2020. REUTERS/Shannon Stapleton

Santa Clara ar officials discovered via autopsies the three world who passed away in their houses on February 6, February 17, and also March 6 had actually the coronavirus.

Before those situations were identified, officials thought that a fatality reported in Washington state top top February 29 was the faster US fatality from the virus.

February 7: Wuhan doctor and whistleblower Li Wenliang died. In ~ the onset of the outbreak, Li warned contacts from medical school around a brand-new virus but was reprimanded by authorities.

Li Wenliang wears a respirator mask in Wuhan, China, top top February 3, 2020. LI WENLIANG/GAN EN fund via REUTERS

Li was required to authorize a letter saying he do "false comments" after he alerted other doctors about the worrisome SARS-like disease.

Li captured the coronavirus himself and also died a little more than a month later. He left behind a son and pregnant wife. After his death, Chinese society media to be filled through outpourings the grief and also anger. Many articles featured a hashtag saying "We want liberty of speech."

February 11: The that announced that the disease caused by the brand-new coronavirus would certainly be dubbed COVID-19.

A microscopic picture of an isolate from the very first US instance of COVID-19. The spherical viral particles space colorized blue. CDC

"We had to find a name the did not refer to a geography location, an animal, an individual, or group of people," that director-general Tedros Adhanom Ghebreyesus said, including that the who wanted a name the was "pronounceable and related come the disease."

February 14: A Chinese tourist who tested confident for the virus passed away in France, ending up being Europe's an initial death tied to the outbreak.

The Eiffel Tower is seen next to a board that reads: "In the context of the COVID-19 the Eiffel Tower closes now from 9pm because that an indefinite period of time," in march 13, 2020. REUTERS/Gonzalo Fuentes/File photo

The victim, an 80-year-old guy from Hubei district who"d traveled to France top top holiday, to be hospitalized and also quarantined top top January 25. France had confirmed 11 cases of the virus by then, according to the BBC.

Also at the time, more than 1,600 world had passed away in Hubei.

Arkansas Gov. Asa Hutchinson speak at a news conference in ~ the state Capitol on march 12, 2020. AP Photo/Andrew DeMillo

The announcements enabled states to activate emergency solution plans and also spend money to deploy extr personnel, purchase equipment, and prepare stockpiles the supplies.

world in Duomo Square ~ Italy went into lockdown to clamp under on the coronavirus, in Milan, Italy, march 10, 2020. Flavio Lo Scalzo/Reuters

Initially, two areas in the north end up being hotspots, for this reason Italian public representative locked down towns there ~ above February 23. Then on march 9, the government expanded the restriction zone to encompass the whole nation.

Tedros Adhanom Ghebreyesus, director-general the WHO, speak on February 3, 2020. Salvatore Di Nolfi/Keystone via associated Press

The WHOmade the designationbased top top the geographic spread of the disease, the severity the illnesses that causes, and also its effects on society.

"Pandemic is no a indigenous to usage lightly or carelessly," Tedros said.

chairman Trump talks v Deborah Flint, CEO that Los Angeles people Airports; unified Airlines CEO Oscar Munoz; and also Myron Gray, president of us operations because that UPS, in ~ the White home on February 9, 2017. REUTERS/Kevin Lamarque

The ban went into result on march 13. The UK and Ireland were later on added. The half did not prevent US citizens and also some other groupsfrom start the nation from Europe.

world watch a Donald trump speech around the coronavirus pandemic from in a bar in Seattle, Washington, on march 11, 2020. REUTERS/Jason Redmond

The declarationtriggered the Stafford action and allowed for much more federal assist to states and municipalities.

Congress also passed a around $2 trillion stimulus package.

March 19: China reported no brand-new locally spread out infections because that the an initial time since the pandemic began.

The Chinese national flag flies at fifty percent mast in ~ a awareness mourning those who died of the coronavirus in Wuhan, China, April 4, 2020. China daily via Reuters

The nation has because kept its situation numbers under control, v fewer 보다 20,000 new cases because May amongst a populace of almost 1.4 billion people.

China"s strictly lockdowns assisted it had COVID-19 so quickly. A in march study uncovered that the Wuhan lockdown top top January 23 prevented 10s of thousands of infections throughout the Hubei province. There is no the lockdown, cases in Hubei would have been 65% higher, the research calculated.

armed forces officers wearing face masks stand external Duomo cathedral in Milan, Italy, which to be closed by authorities due to the coronavirus outbreak, on February 24, 2020. REUTERS/Flavio Lo Scalzo

The country"s coronavirus caseload had actually skyrocketed by the finish of February. As of so late December, more than 2 million people have obtained the coronavirus in Italy.

A department of health employee trains brand-new York army National safety soldiers in ~ a drive-through coronavirus testing facility in brand-new Rochelle, brand-new York, on march 14, 2020. Sgt. Amouris Coss/U.S. Military National Guard/Handout/Reuters

New York state has actually recorded an ext than 887,000 cases in total, though numerous early instances in the spring weren"t counted early out to restricted testing. More than 36,000 human being there have died.

March 26: The US ended up being the world leader in confirmed situations with much more than 82,400, surpassing China's total of 81,780 at the time.

At the time, chairman Trump asserted the high numbers in the united state were because of high levels of testing, also though the country lagged behind other countries in tests per capita, consisting of South Korea and also Italy.

Firefighters disinfect a street in western Tehran, Iran, on march 13, 2020. linked Press/Vahid Salemi

Iran"s schools and universities closeup of the door February 23, together did movie theater and cultural centers. Government officials likewise released 54,000 prisoners to stop outbreaks in its prisons. Still, the country became an early epicenter that the pandemic.

The building and construction site the a brand-new hospital for patients with coronavirus in Moscow, Russia. Mikhail JaparidzeTASS via Getty images

After prime Minister Narendra Modi told India"s 1.3 billion inhabitants to stay home on march 24, 2.6 billion people throughout the civilization were under lockdown. That"s much more people than were alive on the earth during people War II.

The US had actually the most infections at the time, with more than 234,000 cases, or about one-quarter of the world"s total. Italy had around 115,000 cases, and also Spain had reported 110,000. More than 51,000 civilization had died worldwide.

April 7: roughly 95% of every Americans were under some kind of lockdown together a result of state, county, or city orders.

California Gov. Gavin Newsom issued the US's an initial statewide stay-at-home order on in march 19. Various other states followed suit. connected Press

Governors in 42 says issued stay-at-home order by the end of March, influence a total of 308 million people, or around 95% the the us population.

A burial site for world who passed away from COVID-19 in Ukraine. Stanislav Vedmid/AFP/Getty photos

The civilization reached this milestone 101 work after Chinese wellness authorities first alerted the world Health Organization about the coronavirus.At the time, the US had the second-highest death toll of any type of country, through 17,925 deaths. Italy to be highest, with 18,849 deaths.

April 14: president Trump notified a halt on $400 million in US funding for the people Health Organization.

chairman Trump speaks during a news conference around the coronavirus at the White house in Washington DC, march 14, 2020. Alex Brandon/AP

In a prepared statement ~ above April 14, trumped blamed the that for "severely mismanaging and also covering increase the spread of the coronavirus."

Dr. Jorge Hernandez stands close to Maria Angela who has actually tested optimistic for COVID-19, as health care workers bring her to an ambulance watercraft on a stretcher, ~ above Marajo island, Para state, Brazil, June 13, 2020. REUTERS/Ueslei Marcelino

Brazil currently has the third-highest number of COVID-19 cases: an ext than 6.9 million. Much more than 181,000 human being have passed away there, the second-highest fatality toll after ~ the US.

Like chairman Trump, Brazilian president Jair Bolsonaro has endorsed unproven COVID-19 remedies choose hydroxychloroquine and also downplayed the pandemic"s overall threat.

May 11: countless countries, including Spain, Iran, Italy, brand-new Zealand, and Thailand, began to lull lockdown restrictions.

A waiter stand by north tables exterior a restaurant in ~ St Mark's Square after ~ the Italian government enforced a lockdown. Manuel Silvestri/Reuters

New Zealand, in particular, has actually successfully managed its COVID-19 outbreak. Due to the fact that an early spike in April, the nation has not reported an ext than 25 brand-new cases in a solitary day. Overall, it has actually only report 2,128 cases and also 25 deaths.

A wellness worker checks visitors' body temperatures in ~ the gold Temple in Amritsar, India, on march 18, 2020. Narinder Nanu/AFP via Getty images

India has reported much more than 10.1 million coronavirus cases. More than 146,000 world there have died of COVID-19.

The sun sets behind a makeshift memorial because that grocer Steve Shulman, who passed away from COVID-19, in ~ Leschi industry in Seattle, Washington, march 19, 2020. Brian Snyder/Reuters

The number had actually passed 4 million on may 9, simply 11 days earlier. In ~ the time, practically a third of the 5 million situations — 1,551,853 — had been report in the US. An ext than 93,000 human being in the us had passed away from the virus in ~ the time.

Dr. Anthony Fauci, manager of the national Institute for Allergy and Infectious Diseases, clears his face mask before testifying at a Senate hearing, June 30, 2020 in Washington, DC. Kevin Dietsch-Pool/Getty photos

About fifty percent of those infections to be still active and ongoing, while the other fifty percent of civilization had recovered.

Brazil's president Jair Bolsonaro adjusts his face mask in ~ a push statement throughout the COVID-19 outbreak in Brasilia, Brazil, march 20, 2020. Ueslei Marcelino/Reuters

After the announced his diagnosis, Bolsonaro claimed he was gaining treated v hydroxychloroquine.

September 2: The that issued a solid recommendation for the use of steroids among seriously ok COVID-19 patients.

A pharmacist displays a bottle of dexamethasone at the Erasme Hospital in Brussels, Belgium, June 16, 2020. Yves Herman/Reuters

The organization based its reference on the results of 7 clinical trials, which found that critically okay COVID-19 patients given steroids were considerably less likely to die.

"Clearly, now steroids space the standard of care," Dr. Howard Bauchner, editor in chef of the journal of the American clinical Association, said The new York Times.

family gather at the funeral the Fernando Aquirre, 69, who died of COVID-19. Carolyn Cole/Los Angeles times via Getty photos

In March, condition modelers predicted the COVID-19 would kill as numerous as 195,000 civilization in the us by the end of the year. The nation reached that number 3 months earlier than expected.

The an illness has killed much more Americans thanevery war us troops have died in since 1945 combined. The US"s existing death toll fee stands at an ext than 327,000.

Hospital staff members lug candles and oil lamps to display solidarity through people affected by the coronavirus, in Kolkata, India, April 5, 2020. Rupak De Chowdhuri/Reuters

Combined, the US, Brazil, and also India linked accounted because that nearly fifty percent of the total.

The 1 million number was practically certainly one undercount, offered the lack of widespread trial and error in plenty of nations, as well as suspected concealment that cases and also deaths in some countries like Russia and also Brazil.

chairman Trump stop a campaign rally in Winston-Salem, phibìc Carolina, ~ above September 8, 2020. Peter Zay/Anadolu firm via Getty photos

The president"s diagnosis came around a main after the and much more than 150 rather gathered in the White home Rose Garden come celebrate the nomination of referee Amy Coney Barrett to the can be fried Court.

After Trump, at the very least 34 White house staff members, GOP officials, journalists, and other world in the president"s orbit tested hopeful for COVID-19.

October 23: The US gotten in its third surge of coronavirus cases, the start of its most dangerous phase yet.

Houston Fire department medics transfer a man to a hospital after he endured cardiac arrest on respectable 11, 2020 in Houston, Texas. john Moore/Getty images

Daily situations rose much more than 40% native the beginning to end of October. Since then, brand-new cases have continued to tendency upward. Patients with COVID-19 have actually overwhelmed intensive-care units in cities prefer El Paso, Texas, and also Salt Lake City, Utah.

On every of 6 days in December, an ext than 3,000 human being in the us died, eclipsing the everyday high that the an initial wave: 2,752 deaths on may 7.

medical personnel vulnerable a COVID-19 patient at Providence divine Cross Medical facility in Los Angeles, California, ~ above November 19, 2020. Jae C. Hong/AP picture

By the time, the virus had actually killed an ext than 1.25 million people.

Britain's health Secretary Matt Hancock gives a thumbs up together he come at Downing Street in London after offering details on vaccine distribution efforts, Wednesday, December 2, 2020. Kirsty Wigglesworth/AP

"This is a day come remember, frankly, in a year come forget," British health and wellness Secretary Matt Hancock said, according to the associated Press.

Two other companies, Moderna and Astrazeneca, had actually by this point also announced promise trial results. But Astrazeneca"s came under scrutiny, since it turned the end that researcher had offered some participants a half-dose for their an initial shot by mistake. Amongst the group that obtained a half-dose adhered to by a complete dose, the vaccine was found to be 90% effective. Amongst the rest of the psychological participants, who gained two full doses, the vaccine showed 60% effectiveness. AstraZeneca CEO Pascal Soriot said Bloomberg that the company would likely launch a new global trial of the vaccine due to the fact that of the it was crooked data.

Dr. Ugur Sahin and also Dr. Özlem Türeci, co-founders the BioNTech. Stefan F. So¤mmer via

The decision followed an endorsement from one independent panel after Pfizer and BioNTech announced the vaccine to be 95% effective in a major trial.

The FDA had said the would approve a vaccine that proved at least 50% efficacy, and also Fauci had said the hoped for 70%. The vaccine"s development procedure was also unprecedentedly rapid — previously, the faster vaccine ever developed took an ext than four years.

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Moderna; Samantha Lee/Business Insider

The vaccine was more than 94% efficient in the phase 3 trial.