Monkeypox outbreaks associated with human-to-human transmission outside endemic areas
Since May 2022, cases of monkeypox have increased globally, stirring fears of a new pandemic. A study published in the open-access journal PLOS Pathogens…
Since May 2022, cases of monkeypox have increased globally, stirring fears of a new pandemic. A study published in the open-access journal PLOS Pathogens on September 22nd by Professor Souha Kanj and colleagues at the American University of Beirut Medical Center, Beirut, Lebanon, presents synthesized descriptions of its clinical characteristics, risk factors, infection control and prevention measures, as well as potential treatments.
Since May 2022, cases of monkeypox have increased globally, stirring fears of a new pandemic. A study published in the open-access journal PLOS Pathogens on September 22nd by Professor Souha Kanj and colleagues at the American University of Beirut Medical Center, Beirut, Lebanon, presents synthesized descriptions of its clinical characteristics, risk factors, infection control and prevention measures, as well as potential treatments.
Historically, monkeypox was mostly confined to endemic areas in Western and Central Africa and was mostly transmitted through contact with infected animals. However, human-to-human transmission has recently become the primary mode of transmission, raising concerns for previous undetected community spread. To better understand the epidemiologic landscape of this emerging outbreak, the authors conducted a literature review of the available evidence on monkeypox. They found that during the current outbreak, confirmed, probable, and/or possible monkeypox cases have increased tenfold across more than seventy-six countries. The data suggest an increase in the disease incidence and possible improved surveillance. Current cases showed a rapid human-to-human transmission, raising concerns for rapid community spread, though not necessarily related to travel to endemic areas in Africa.
The literature review has several limitations, including the small sample size of case studies and the absence of randomized controlled trials on monkeypox therapy, both of which limit generalizability. Larger and more robust studies are needed to determine the specific risk factors, transmission modes, and potential therapeutics, as well as the scope of the current outbreak.
According to the authors, “Key gap information needs to be further studied to provide better answers such as the exact mode of transmission and the role of animal reservoirs. Sexual modes of transmission, genetic mutations, waning immunity from smallpox and previous undetected cases of monkeypox warrant further investigation. Doctors should also keep in mind the atypical presentations and rely on the WHO and CDC criteria to guide patients and help in containing outbreaks”.
Kanj and co-authors add, “Monkeypox has been declared as a public health emergency that warrants special attention and early diagnosis in view of its global widespread and atypical presentation.”
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In your coverage, please use this URL to provide access to the freely available article in PLOS Pathogens: http://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1010768
Citation: El Eid R, Allaw F, Haddad SF, Kanj SS (2022) Human monkeypox: A review of the literature. PLoS Pathog 18(9): e1010768. https://doi.org/10.1371/journal.ppat.1010768
Author Countries: Lebanon
Funding: The authors received no specific funding for this manuscript.
Journal
PLoS Pathogens
DOI
10.1371/journal.ppat.1010768
Method of Research
Literature review
Subject of Research
Not applicable
COI Statement
Competing interests: The authors have declared that no competing interests exist.
The brief closure of the Darien Gap – a perilous 66-mile jungle journey linking South American and Central America – in February 2024 temporarily halted one of the Western Hemisphere’s busiest migration routes. It also highlighted its importance to a small but growing group of people that depend on that pass to make it to the U.S.: Chinese migrants.
I’m a scholar of migration and China. What I find most remarkable in these figures is the speed with which the number of Chinese migrants is growing. Nearly 10 times as many Chinese migrants crossed the southern border in 2023 as in 2022. In December 2023 alone, U.S. Border Patrol officials reported encounters with about 6,000 Chinese migrants, in contrast to the 900 they reported a year earlier in December 2022.
According to a report from Reuters, in many cases those attempting to make the crossing are small-business owners who saw irreparable damage to their primary or sole source of income due to China’s “zero COVID” policies. The migrants are women, men and, in some cases, children accompanying parents from all over China.
First, the most common path for immigration for Chinese nationals is through a student visa or H1-B visa for skilled workers. But travel restrictions during the early months of the pandemic temporarily stalled migration from China. Immigrant visas are out of reach for many Chinese nationals without family or vocation-based preferences, and tourist visas require a personal interview with a U.S. consulate to gauge the likelihood of the traveler returning to China.
Social media tutorials
Second, with the legal routes for immigration difficult to follow, social media accounts have outlined alternatives for Chinese who feel an urgent need to emigrate. Accounts on Douyin, the TikTok clone available in mainland China, document locations open for visa-free travel by Chinese passport holders. On TikTok itself, migrants could find information on where to cross the border, as well as information about transportation and smugglers, commonly known as “snakeheads,” who are experienced with bringing migrants on the journey north.
With virtual private networks, immigrants can also gather information from U.S. apps such as X, YouTube, Facebook and other sites that are otherwise blocked by Chinese censors.
In addition to information about crossing the Darien Gap, these social media posts highlight the best places to cross the border. This has led to a large share of Chinese asylum seekers following the same path to Mexico’s Baja California to cross the border near San Diego.
Chinese migration to US is nothing new
The rapid increase in numbers and the ease of accessing information via social media on their smartphones are new innovations. But there is a longer history of Chinese migration to the U.S. over the southern border – and at the hands of smugglers.
From 1882 to 1943, the United States banned all immigration by male Chinese laborers and most Chinese women. A combination of economic competition and racist concerns about Chinese culture and assimilability ensured that the Chinese would be the first ethnic group to enter the United States illegally.
With legal options for arrival eliminated, some Chinese migrants took advantage of the relative ease of movement between the U.S. and Mexico during those years. While some migrants adopted Mexican names and spoke enough Spanish to pass as migrant workers, others used borrowed identities or paperwork from Chinese people with a right of entry, like U.S.-born citizens. Similarly to what we are seeing today, it was middle- and working-class Chinese who more frequently turned to illegal means. Those with money and education were able to circumvent the law by arriving as students or members of the merchant class, both exceptions to the exclusion law.
Though these Chinese exclusion laws officially ended in 1943, restrictions on migration from Asia continued until Congress revised U.S. immigration law in the Hart-Celler Act in 1965. New priorities for immigrant visas that stressed vocational skills as well as family reunification, alongside then Chinese leader Deng Xiaoping’s policies of “reform and opening,” helped many Chinese migrants make their way legally to the U.S. in the 1980s and 1990s.
Even after the restrictive immigration laws ended, Chinese migrants without the education or family connections often needed for U.S. visas continued to take dangerous routes with the help of “snakeheads.”
One notorious incident occurred in 1993, when a ship called the Golden Venture ran aground near New York, resulting in the drowning deaths of 10 Chinese migrants and the arrest and conviction of the snakeheads attempting to smuggle hundreds of Chinese migrants into the United States.
Existing tensions
Though there is plenty of precedent for Chinese migrants arriving without documentation, Chinese asylum seekers have better odds of success than many of the other migrants making the dangerous journey north.
An estimated 55% of Chinese asylum seekers are successful in making their claims, often citing political oppression and lack of religious freedom in China as motivations. By contrast, only 29% of Venezuelans seeking asylum in the U.S. have their claim granted, and the number is even lower for Colombians, at 19%.
The new halt on the migratory highway from the south has affected thousands of new migrants seeking refuge in the U.S. But the mix of push factors from their home country and encouragement on social media means that Chinese migrants will continue to seek routes to America.
And with both migration and the perceived threat from China likely to be features of the upcoming U.S. election, there is a risk that increased Chinese migration could become politicized, leaning further into existing tensions between Washington and Beijing.
Meredith Oyen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
But vaccine skepticism, and the broader medical mistrust and far-reaching anxieties it reflects, is not just a fringe position.
Pediatric vaccination rates had already fallen sharply before the COVID-19 pandemic, ushering in the return of measles, mumps and chickenpox to the U.S. in 2019. Four years after the pandemic’s onset, a growing number of Americans doubt the safety, efficacy and necessity of routine vaccines. Childhood vaccination rates have declined substantially across the U.S., which public health officials attribute to a “spillover” effect from pandemic-related vaccine skepticism and blame for the recent measles outbreak. Almost half of American mothers rated the risk of side effects from the MMR vaccine as medium or high in a 2023 survey by Pew Research.
Recommended vaccines go through rigorous testing and evaluation, and the most infamous charges of vaccine-induced injury have been thoroughly debunked. How do so many mothers – primary caregivers and health care decision-makers for their families – become wary of U.S. health care and one of its most proven preventive technologies?
I’m a cultural anthropologist who studies the ways feelings and beliefs circulate in American society. To investigate what’s behind mothers’ vaccine skepticism, I interviewed vaccine-skeptical mothers about their perceptions of existing and novel vaccines. What they told me complicates sweeping and overly simplified portrayals of their misgivings by pointing to the U.S. health care system itself. The medical system’s failures and harms against women gave rise to their pervasive vaccine skepticism and generalized medical mistrust.
The seeds of women’s skepticism
I conducted this ethnographic research in Oregon from 2020 to 2021 with predominantly white mothers between the ages of 25 and 60. My findings reveal new insights about the origins of vaccine skepticism among this demographic. These women traced their distrust of vaccines, and of U.S. health care more generally, to ongoing and repeated instances of medical harm they experienced from childhood through childbirth.
As young girls in medical offices, they were touched without consent, yelled at, disbelieved or threatened. One mother, Susan, recalled her pediatrician abruptly lying her down and performing a rectal exam without her consent at the age of 12. Another mother, Luna, shared how a pediatrician once threatened to have her institutionalized when she voiced anxiety at a routine physical.
As women giving birth, they often felt managed, pressured or discounted. One mother, Meryl, told me, “I felt like I was coerced under distress into Pitocin and induction” during labor. Another mother, Hallie, shared, “I really battled with my provider” throughout the childbirth experience.
Together with the convoluted bureaucracy of for-profit health care, experiences of medical harm contributed to “one million little touch points of information,” in one mother’s phrase, that underscored the untrustworthiness and harmful effects of U.S. health care writ large.
A system that doesn’t serve them
Many mothers I interviewed rejected the premise that public health entities such as the Centers for Disease Control and Prevention and the Food and Drug Administration had their children’s best interests at heart. Instead, they tied childhood vaccination and the more recent development of COVID-19 vaccines to a bloated pharmaceutical industry and for-profit health care model. As one mother explained, “The FDA is not looking out for our health. They’re looking out for their wealth.”
After ongoing negative medical encounters, the women I interviewed lost trust not only in providers but the medical system. Frustrating experiences prompted them to “do their own research” in the name of bodily autonomy. Such research often included books, articles and podcasts deeply critical of vaccines, public health care and drug companies.
These materials, which have proliferated since 2020, cast light on past vaccine trials gone awry, broader histories of medical harm and abuse, the rapid growth of the recommended vaccine schedule in the late 20th century and the massive profits reaped from drug development and for-profit health care. They confirmed and hardened women’s suspicions about U.S. health care.
The perceptions mothers shared are far from isolated or fringe, and they are not unreasonable. Rather, they represent a growing population of Americans who hold the pervasive belief that U.S. health care harms more than it helps.
Data suggests that the number of Americans harmed in the course of treatment remains high, with incidents of medical error in the U.S. outnumbering those in peer countries, despite more money being spent per capita on health care. One 2023 study found that diagnostic error, one kind of medical error, accounted for 371,000 deaths and 424,000 permanent disabilities among Americans every year.
The prevalence of medical harm points to the relevance of philosopher Ivan Illich’s manifesto against the “disease of medical progress.” In his 1982 book “Medical Nemesis,” he insisted that rather than being incidental, harm flows inevitably from the structure of institutionalized and for-profit health care itself. Illich wrote, “The medical establishment has become a major threat to health,” and has created its own “epidemic” of iatrogenic illness – that is, illness caused by a physician or the health care system itself.
Four decades later, medical mistrust among Americans remains alarmingly high. Only 23% of Americans express high confidence in the medical system. The United States ranks 24th out of 29 peer high-income countries for the level of public trust in medical providers.
For people like the mothers I interviewed, who have experienced real or perceived harm at the hands of medical providers; have felt belittled, dismissed or disbelieved in a doctor’s office; or spent countless hours fighting to pay for, understand or use health benefits, skepticism and distrust are rational responses to lived experience. These attitudes do not emerge solely from ignorance, conspiracy thinking, far-right extremism or hysteria, but rather the historical and ongoing harms endemic to the U.S. health care system itself.
Johanna Richlin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
Survey Shows Declining Concerns Among Americans About COVID-19
A new survey reveals that only 20% of Americans view covid-19 as "a major threat" to the health of the US population - a sharp decline from a high of 67% in July 2020.
What's more, the Pew Research Center survey conducted from Feb. 7 to Feb. 11 showed that just 10% of Americans are concerned that they will catch the disease and require hospitalization.
"This data represents a low ebb of public concern about the virus that reached its height in the summer and fall of 2020, when as many as two-thirds of Americans viewed COVID-19 as a major threat to public health," reads the report, which was published March 7.
According to the survey, half of the participants understand the significance of researchers and healthcare providers in understanding and treating long COVID - however 27% of participants consider this issue less important, while 22% of Americans are unaware of long COVID.
What's more, while Democrats were far more worried than Republicans in the past, that gap has narrowed significantly.
"In the pandemic’s first year, Democrats were routinely about 40 points more likely than Republicans to view the coronavirus as a major threat to the health of the U.S. population. This gap has waned as overall levels of concern have fallen," reads the report.
The survey found that three in ten Democrats under 50 have received an updated COVID-19 vaccine, compared with 66 percent of Democrats ages 65 and older.
Moreover, 66 percent of Democrats ages 65 and older have received the updated COVID-19 vaccine, while only 24 percent of Republicans ages 65 and older have done so.
“This 42-point partisan gap is much wider now than at other points since the start of the outbreak. For instance, in August 2021, 93 percent of older Democrats and 78 percent of older Republicans said they had received all the shots needed to be fully vaccinated (a 15-point gap),” it noted.
COVID-19 No Longer an Emergency
The U.S. Centers for Disease Control and Prevention (CDC) recently issued its updated recommendations for the virus, which no longer require people to stay home for five days after testing positive for COVID-19.
The updated guidance recommends that people who contracted a respiratory virus stay home, and they can resume normal activities when their symptoms improve overall and their fever subsides for 24 hours without medication.
“We still must use the commonsense solutions we know work to protect ourselves and others from serious illness from respiratory viruses, this includes vaccination, treatment, and staying home when we get sick,” CDC director Dr. Mandy Cohen said in a statement.
The CDC said that while the virus remains a threat, it is now less likely to cause severe illness because of widespread immunity and improved tools to prevent and treat the disease.
“Importantly, states and countries that have already adjusted recommended isolation times have not seen increased hospitalizations or deaths related to COVID-19,” it stated.
The federal government suspended its free at-home COVID-19 test program on March 8, according to a website set up by the government, following a decrease in COVID-19-related hospitalizations.
According to the CDC, hospitalization rates for COVID-19 and influenza diseases remain “elevated” but are decreasing in some parts of the United States.
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