The consensus among
virologists is that the most likely
origin of the SARS-CoV-2 virus to be natural
crossover from animals, having
spilled-over into the human population from bats, possibly through an intermediate animal host, although the exact transmission pathway has not been determined.
Genomic evidence suggests an ancestor virus of SARS-CoV-2 originated in
horseshoe bats. Unsubstantiated speculation and conspiracy theories related to this topic have gained popularity during the pandemic. Common conspiracy theories state that the virus was intentionally engineered, either as a bio-weapon or to profit from the sale of vaccines. According to the World Health Organization, genetic manipulation has been ruled out by genomic analysis. Many other origin stories have also been told, ranging from claims of secret plots by political opponents to a conspiracy theory about mobile phones. In March 2020, the
Pew Research Center found that a third of Americans believed COVID-19 had been created in a lab, and a quarter thought it had been engineered intentionally. The spread of these conspiracy theories is magnified through mutual distrust and animosity, as well as nationalism and the use of propaganda campaigns for political purposes. The promotion of misinformation has been used by American far-right groups such as
QAnon, by rightwing outlets such as Fox News, by US President Donald Trump and also other prominent Republicans to stoke anti-China sentiments, This has also resulted in the bullying of scientists and public health officials, both online and in-person, fueled by a highly political and oftentimes toxic debate on many issues. Such spread of misinformation and conspiracy theories has the potential to negatively affect public health and diminish trust in governments and medical professionals. The resurgence of the lab leak and other theories was fueled in part by the publication, in May 2021, of early emails between National Institute of Allergy and Infectious Diseases (NIAID) director
Anthony Fauci and scientists discussing the issue. Per the emails in question, Kristian Andersen (author of one study debunking genomic manipulation theories) had heavily considered the possibility, and emailed Fauci proposing possible mechanisms, before ruling out deliberate manipulation with deeper technical analysis. These emails were later misconstrued and used by critics to claim a conspiracy was occurring. The ensuing controversy became known as the "
Proximal Origin". However, despite claims to the contrary in some US newspapers, no new evidence has surfaced to support any theory of a laboratory accident, and the majority of peer-reviewed research points to a natural origin. This parallels previous outbreaks of novel diseases, such as HIV, SARS and H1N1, which have also been the subject of allegations of laboratory origin. A scientist from Hong Kong,
Li-Meng Yan, fled China and released a
preprint stating the virus was modified in a lab rather than having a natural evolution. In an ad hoc peer-review (as the paper was not submitted for traditional peer review as part of the standard scientific publishing process), her claims were labelled as misleading, unscientific, and an unethical promotion of "essentially conspiracy theories that are not founded in fact". Yan's paper was funded by the Rule of Law Society and the Rule of Law Foundation, two non-profits linked to
Steve Bannon, a former Trump strategist, and
Guo Wengui, an
expatriate Chinese billionaire. This misinformation was further seized on by the American far-right, who have been known to promote
distrust of China. In effect, this formed "a fast-growing
echo chamber for misinformation". The idea of SARS-CoV-2 as a lab-engineered weapon is an element of the
Plandemic conspiracy theory, which proposes that it was deliberately released by China.
The Epoch Times, an anti-
Chinese Communist Party (CCP) newspaper affiliated with
Falun Gong, has spread misinformation related to the COVID-19 pandemic in print and via social media including Facebook and YouTube. It has promoted anti-CCP rhetoric and conspiracy theories around the coronavirus outbreak, for example through an 8-page special edition called "How the Chinese Communist Party Endangered the World", which was distributed unsolicited in April 2020 to mail customers in areas of the United States, Canada, and Australia. In the newspaper, the
SARS-CoV-2 virus is known as the "Chinese Communist Party| virus", and a commentary in the newspaper posed the question, "is the novel coronavirus outbreak in Wuhan an accident occasioned by weaponizing the virus at that [Wuhan P4 virology] lab?" In response to the propagation of theories in the US of a Wuhan lab origin, the Chinese government promulgated the conspiracy theory that the virus was developed by the United States army at
Fort Detrick. The conspiracy theory was also promoted by British MP
Andrew Bridgen in March 2023.
Gain-of-function research One idea used to support a laboratory origin invokes previous
gain-of-function research on coronaviruses. Virologist
Angela Rasmussen argued that this is unlikely, due to the intense scrutiny and government oversight gain-of-function research is subject to, and that it is improbable that research on hard-to-obtain coronaviruses could occur under the radar. The exact meaning of "gain of function" is disputed among experts. In May 2020, Fox News host
Tucker Carlson accused Anthony Fauci of having "funded the creation of COVID" through gain-of-function research at the Wuhan Institute of Virology (WIV). Citing an essay by science writer
Nicholas Wade, Carlson alleged that Fauci had directed research to make bat viruses more infectious to humans. In a hearing the next day, US senator
Rand Paul alleged that the US National Institutes of Health (NIH) had been funding gain-of-function research in Wuhan, accusing researchers including epidemiologist
Ralph Baric of creating "super-viruses". Both Fauci and NIH Director
Francis Collins have denied that the US government supported such research. Baric likewise rejected Paul's allegations, saying that his lab's research into the potential in bat coronaviruses for cross-species transmission was not deemed gain-of-function by NIH or the University of North Carolina, where he works. A 2017 study of
chimeric bat coronaviruses at the WIV listed NIH as a sponsor; however, NIH funding was only related to sample collection. Based on this and other evidence,
The Washington Post rated the claim of an NIH connection to gain-of-function research on coronaviruses as "two pinocchios", representing "significant omissions and/or exaggerations".
Accidental release of collected sample Another theory suggests the virus arose in humans from an accidental infection of laboratory workers by a natural sample. Unfounded online speculation about this scenario has been widespread. The report acknowledged, however, that the possibility cannot be ruled out without further evidence. At the release briefing for the report, WHO Director-General
Tedros Adhanom Ghebreyesus reiterated the report's calls for a deeper probe into all evaluated possibilities, including the laboratory origin scenario. The study and report were criticised by heads of state from the US, the EU, and other WHO member countries for a lack of transparency and incomplete access to data. Further investigations have also been requested by some scientists, including Anthony Fauci and signatories of a letter published in
Science. Since May 2021, some media organizations softened previous language that described the laboratory leak theory as "debunked" or a "conspiracy theory". On the other hand, scientific opinion that an accidental leak is possible, but unlikely, has remained steady. A number of journalists and scientists have said that they dismissed or avoided discussing the lab leak theory during the first year of the pandemic as a result of perceived polarization resulting from Donald Trump's embrace of the theory.
Stolen from Canadian lab Some social media users have alleged that COVID-19 was stolen from a Canadian virus research lab by Chinese scientists.
Health Canada and the
Public Health Agency of Canada said that this had "no factual basis". Canadian officials described this as an administrative matter and said there was no risk to the Canadian public. Responding to the conspiracy theories, the CBC stated that its articles "never claimed the two scientists were spies, or that they brought any version of [a] coronavirus to the lab in Wuhan". While pathogen samples were transferred from the lab in Winnipeg to Beijing in March 2019, neither of the samples contained a coronavirus. The Public Health Agency of Canada has stated that the shipment conformed to all federal policies, and that the researchers in question are still under investigation, and thus it cannot be confirmed nor denied that these two were responsible for sending the shipment. The location of the researchers under investigation by the Royal Canadian Mounted Police has also not been released. In a January 2020 press conference,
NATO secretary-general
Jens Stoltenberg, when asked about the case, stated that he could not comment specifically on it, but expressed concerns about "increased efforts by the nations to spy on NATO allies in different ways".
Accusations by China According to
The Economist, conspiracy theories exist on China's internet about COVID-19 being created by the CIA in order to "keep China down". According to an investigation by
ProPublica, such conspiracy theories and disinformation have been propagated under the direction of
China News Service, the country's second largest government-owned media outlet controlled by the
United Front Work Department.
Global Times and
Xinhua News Agency have similarly been implicated in propagating disinformation related to COVID-19's origins.
NBC News however has noted that there have also been debunking efforts of US-related conspiracy theories posted online, with a WeChat search of "Coronavirus [disease 2019] is from the U.S." reported to mostly yield articles explaining why such claims are unreasonable. In March 2020, two spokesmen for the Chinese Ministry of Foreign Affairs,
Zhao Lijian and
Geng Shuang, alleged at a press conference that Western powers may have "bio-engineered" COVID-19. They were alluding that the US Army created and spread COVID-19, allegedly during the
2019 Military World Games in Wuhan, where numerous cases of
influenza-like illness were reported. A member of the U.S. military athletics delegation based at Fort Belvoir, who competed in the
50mi Road Race at the Wuhan games, became the subject of online targeting by netizens accusing her of being "
patient zero" of the COVID-19 outbreak in Wuhan, and was later interviewed by CNN, to clear her name from the "false accusations in starting the pandemic". In January 2021,
Hua Chunying renewed the conspiracy theory from Zhao Lijian and Geng Shuang that the SARS-CoV-2 virus originating in the United States at the
U.S. biological weapons lab Fort Detrick. This conspiracy theory quickly went trending on the Chinese social media platform Weibo, and Hua Chunying continued to cite evidence on Twitter, while asking the government of the United States to open up Fort Detrick for further investigation to determine if it is the source of the SARS-CoV-2 virus. In August 2021, a Chinese Foreign Ministry spokesman repeatedly used an official podium to elevate the Fort Detrick's origin unproven idea. According to a report from
Foreign Policy, Chinese diplomats and government officials in concert with China's propaganda apparatus and covert networks of online agitators and influencers have responded, focused on repeating Zhao Lijian's allegation relating to Fort Detrick in Maryland, and the "over 200 U.S. biolabs" around the world. In April 2025, the Chinese government "restated its case that COVID-19 may have originated in the United States" according to
Reuters.
Accusations by Russia In February 2020, US officials alleged that Russia is behind an ongoing disinformation campaign, using thousands of social media accounts on Twitter, Facebook and
Instagram to deliberately promote unfounded conspiracy theories, claiming the virus is a biological weapon manufactured by the
CIA and the US is waging economic war on China using the virus. In March 2022, amid the
2022 Russian invasion of Ukraine, the Russian Defense Ministry stated that US President
Joe Biden's son,
Hunter Biden, as well as billionaire
George Soros, were closely tied to Ukrainian biolabs. American right-wing media personalities, such as
Tucker Carlson, highlighted the story, while Chinese Communist Party-owned tabloid
Global Times further stated that the labs had been studying bat coronaviruses, which spread widely on the Chinese internet for insinuating that the United States had created SARS-CoV-19 in Ukrainian laboratories.
Accusations by other countries According to Washington, DC-based nonprofit
Middle East Media Research Institute, numerous writers in the Arabic press have promoted the conspiracy theory that COVID-19, as well as SARS and the swine flu virus, were deliberately created and spread to sell vaccines against these diseases, and it is "part of an economic and psychological war waged by the U.S. against China with the aim of weakening it and presenting it as a backward country and a source of diseases". Accusations in Turkey of Americans creating the virus as a weapon have been reported, and a
YouGov poll from August 2020 found that 37% of Turkish respondents believed the US government was responsible for creating and spreading the virus. , Iran's deputy health minister, rejected bioterrorism theories. An Iranian cleric in
Qom said
Donald Trump targeted the city with coronavirus "to damage its culture and honor". Theories blaming the USA have also circulated in the Philippines, Venezuela and Pakistan. An October 2020
Globsec poll of
Eastern European countries found that 38% of respondents in Montenegro and Serbia, 37% of those in North Macedonia, and 33% in Bulgaria believed the USA deliberately created COVID-19.
Jewish origin In the Muslim world Iran's
Press TV asserted that "
Zionist elements developed a deadlier strain of coronavirus against Iran." Similarly, some Arab media outlets accused Israel and the United States of creating and spreading COVID-19,
avian flu, and
SARS. Users on social media offered other theories, including the allegation that Jews had manufactured COVID-19 to precipitate a global stock market collapse and thereby profit via
insider trading, while a guest on Turkish television posited a more ambitious scenario in which Jews and Zionists had created COVID-19, avian flu, and
Crimean–Congo hemorrhagic fever to "design the world, seize countries, [and] neuter the world's population". Turkish politician
Fatih Erbakan reportedly said in a speech: "Though we do not have certain evidence, this virus serves Zionism's goals of decreasing the number of people and preventing it from increasing, and important research expresses this." Israeli attempts to develop a
COVID-19 vaccine prompted negative reactions in Iran. Grand Ayatollah
Naser Makarem Shirazi denied initial reports that he had ruled that a Zionist-made vaccine would be
halal, and one
Press TV journalist tweeted that "I'd rather take my chances with the virus than consume an Israeli vaccine." A columnist for the Turkish
Yeni Akit asserted that such a vaccine could be a ruse to carry out
mass sterilization.
In the United States An alert by the US
Federal Bureau of Investigation regarding the possible threat of far-right extremists intentionally spreading COVID-19 mentioned blame being assigned to Jews and Jewish leaders for causing the pandemic and several statewide shutdowns.
In Germany Flyers have been found on German tram cars, falsely blaming Jews for the pandemic. In April 2022, two members of the
Reichsbürger movement (later implicated in the
2022 German coup d'état plot) were charged with conspiring to kidnap the German health minister
Karl Lauterbach.
In Britain According to a study carried out by the
University of Oxford in early 2020, nearly one-fifth of respondents in England believed to some extent that Jews were responsible for creating or spreading the virus with the motive of financial gain.
Muslims spreading virus In India, Muslims have been blamed for spreading infection following the emergence of cases linked to a
Tablighi Jamaat religious gathering. There are reports of vilification of Muslims on social media and attacks on individuals in India. Claims have been made that Muslims are selling food contaminated with SARS-CoV-2 and that a mosque in
Patna was sheltering people from Italy and Iran. These claims were shown to be false. In the UK, there are reports of far-right groups blaming Muslims for the pandemic and falsely claiming that mosques remained open after the national ban on large gatherings.
Population-control scheme According to the BBC, Jordan Sather, a
YouTuber supporting the
QAnon conspiracy theory and the
anti-vax movement, has falsely claimed that the outbreak was a population-control scheme created by the
Pirbright Institute in England and by former
Microsoft CEO
Bill Gates. In mid-2020, a
hoax spread on social media claiming that
World Bank documents showed that they had been planning pandemic measures since 2017 or 2018, even though the documents did not mention
COVID-19 until they were updated after the
pandemic began. A similar hoax also spread at the same time, which involved an alleged test to detect
COVID-19 patented by the
Rothschild family in 2015, even though in reality the patent did not mention
COVID-19 at all before 2020, and it was only updated after the
pandemic began. In Germany, it had been repeatedly falsely claimed on the Internet during the
pandemic that the
German government and the
Robert Koch Institute had acknowledged the non-existence of
COVID-19.
Piers Corbyn was described as "dangerous" by physician and broadcaster
Hilary Jones during their joint interview on
Good Morning Britain in early September 2020. Corbyn described COVID-19 as a "psychological operation to close down the economy in the interests of mega-corporations" and stated "vaccines cause death".
5G mobile networks engineers appealed on anti-5G Facebook groups, saying they are not involved in mobile networks, and workplace abuse is making it difficult for them to maintain phonelines and broadband. The first conspiracy theories purporting a link between COVID-19 and
5G mobile networks had already appeared by the end of January 2020. Such claims spread rapidly on social media networks, leading to the spread of misinformation in what has been likened to a "digital wildfire". In March 2020, Thomas Cowan, a
holistic medical practitioner who trained as a physician and operates on probation with the
Medical Board of California, alleged that COVID-19 is caused by 5G. He based this on the claims that
African countries had not been affected significantly by the pandemic and Africa was not a 5G region. Cowan also falsely alleged that the viruses were waste from
cells that were poisoned by electromagnetic fields, and that historical viral pandemics coincided with major developments in radio technology. The claims may also have been recirculated by an alleged "coordinated disinformation campaign", similar to campaigns used by the
Internet Research Agency in
Saint Petersburg, Russia. The claims were criticized on social media and debunked by
Reuters,
USA Today,
Full Fact and
American Public Health Association executive director
Georges C. Benjamin. Cowan's claims were repeated by
Mark Steele, a conspiracy theorist who claimed to have first-hand knowledge that 5G was in fact a weapon system capable of causing symptoms identical to those produced by the virus.
Kate Shemirani, a former nurse who had been struck off the
UK nursing registry and had become a promoter of conspiracy theories, repeatedly claimed that these symptoms were identical to those produced by exposure to electromagnetic fields. Steve Powis, national medical director of
NHS England, described theories linking 5G mobile-phone networks to COVID-19 as the "worst kind of fake news". Viruses cannot be transmitted by
radio waves, and COVID-19 has spread and continues to spread in many countries that do not have 5G networks. In April 2020,
Gardaí and fire services were called to fires at 5G masts in
County Donegal, Ireland. The Gardaí were treating the fires as arson. Telecommunications provider
Vodafone announced that two Vodafone masts and two it shares with
O2, another provider, had been targeted. By April 2020, at least 20 mobile-phone masts in the UK had been vandalised. Because of the slow rollout of 5G in the UK, many of the damaged masts had only 3G and 4G equipment. There have also been incidents in Ireland and Cyprus. Facebook has deleted messages encouraging attacks on 5G equipment. Engineers working for
Openreach, a division of
British Telecom, posted pleas on anti-5G Facebook groups asking to be spared abuse as they are not involved with maintaining mobile networks. Industry lobby group Mobile UK said the incidents were affecting the maintenance of networks that support home working and provide critical connections to vulnerable customers, emergency services, and hospitals. In April 2020, YouTube announced that it would reduce the amount of content claiming links between 5G and COVID-19. Videos that are conspiratorial about 5G that do not mention COVID-19 would not be removed, though they might be considered "borderline content" and therefore removed from search recommendations, losing advertising revenue. It took YouTube on average 41 days to remove Covid-related videos containing false information in the first half of 2020. Ofcom issued guidance to
ITV following comments by
Eamonn Holmes about 5G and COVID-19 on
This Morning. Ofcom said the comments were "ambiguous" and "ill-judged" and they "risked undermining viewers' trust in advice from public authorities and scientific evidence". He claimed to have formerly headed the largest business unit at Vodafone, but insiders at the company said that he was hired for a sales position in 2014 when 5G was not a priority for the company and that 5G would not have been part of his job.
American scientist selling virus to China In April 2020, rumors circulated on Facebook, alleging that the US Government had "just discovered and arrested"
Charles Lieber, chair of the Chemistry and Chemical Biology Department at
Harvard University for "manufacturing and selling" the novel coronavirus (COVID-19) to China. According to a report from
Reuters, posts spreading the rumor were shared in multiple languages over 79,000 times on Facebook. Lieber was arrested in January 2020, and later charged with two federal counts of making an allegedly false statement about his links to a Chinese university, unrelated to the virus. The rumor of Lieber, a chemist in an area entirely unrelated to the virus research, developing COVID-19 and selling it to China has been discredited.
Meteor origin In 2020, a group of researchers that included
Edward J. Steele and
Chandra Wickramasinghe, the foremost living proponent of
panspermia, speculated in ten research papers that COVID-19 originated from a
meteor spotted as a bright fireball over the city of
Songyuan in Northeast China in October 2019 and that a fragment of the meteor landed in the Wuhan area, which started the first COVID-19 outbreaks. However, the group of researchers did not provide any direct evidence proving this conjecture. In an August 2020 article,
Astronomy.com called the meteor origin conjecture "so remarkable that it makes the others look boring by comparison". == PCR testing==