In 2016, the Association of Medical Workers of Chapayevsk (Samara Region) was labeled a “foreign agent.” The reason was research grants from U.S. organizations for medical studies that the NGO was conducting jointly with scientists from Harvard University. The organization was later dissolved. It was the first, but far from the last, case in which long-term medical research programs carried out jointly with major Western scientific centers were shut down to serve political interests. T-invariant examines what research was conducted in Chapayevsk and whether the scientists managed to complete their work.
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What Russian Scientists and Harvard Were Studying in Chapayevsk
Back in the 1990s, a state environmental assessment declared Chapayevsk a zone of “ecological emergency.” Until 1949, the city produced chemical warfare agents — mustard gas and lewisite. Later, the local plant began manufacturing organochlorine pesticides, generating dioxins harmful to human health as a byproduct. According to some reports, these compounds were associated with elevated breast cancer rates in the city. Hazardous production facilities were shut down by 1998, but measurements taken in the early 2000s showed that concentrations of dangerous compounds in the city’s soil, household dust, and some food products remained high.
The Association of Medical Workers of the City of Chapayevsk was founded in 1999. The NGO was created to address the health effects of the city’s environmental conditions. It was established by local doctors and scientists, and headed by Oleg Sergeev, a well-known pediatric endocrinologist in the city. In the early 2000s, the association began cooperating with the Harvard School of Public Health. Russian and American scientists jointly launched prospective cohort studies of male health in Chapayevsk. The hypothesis was that dioxins might act similarly to female sex hormones — estrogens. In that case, they could negatively affect the development of boys and the reproductive health of men.
In 2003, the scientists selected about 500 boys aged 8–9 years and, with parental consent, monitored their physical health, recording annual changes. When the boys grew up, the researchers began studying whether the environmental situation had affected their ability to conceive children.
In an interview with Kommersant, the head of the association, Oleg Sergeev, explained that the foreign grants were mainly needed to set up a laboratory at the Chapayevsk hospital that could obtain international certification. At the same time, the personal data of the study participants were known only to the Russian doctors who monitored them. The collected biological samples were not taken abroad either — only depersonalized information was sent to the United States.
The first grant for research in Chapayevsk was awarded in 2003 by the U.S. National Institute of Environmental Health Sciences (NIEHS, part of the National Institutes of Health — NIH). In 2010 it was extended for another six years. In total, the scientists received 65.3 million rubles. In addition to purchasing equipment and consumables, the money was used to pay salaries, with approximately one-sixth going to Russian social funds — that is, into the state budget.
In 2014, Chapayevsk researchers also received a grant from the Russian Science Foundation. This funded a study at the Institute of General Genetics of the Russian Academy of Sciences. Its goal was to examine the same cohort of boys, who by then were about 19–20 years old. Of these, 64% remained under medical follow-up. The scientists wanted to study how environmental pollution affects epigenetic changes in sperm DNA and the semen quality of men who were exposed to dioxin-like compounds in early childhood and adolescence. The association also worked on other projects, such as HIV prevention in the region and anti-smoking efforts.
T-INVARIANT BACKGROUND
The first NGOs with a clearly defined scientific and research profile began to be included in the foreign agent list 11 years ago:
- Samara Center for Gender Studies — February 16, 2015;
- Center for Independent Social Research — June 22, 2015;
- Levada Center — September 5, 2016.
The labeling of the Association of Medical Workers of Chapayevsk as a foreign agent was far from the only case of persecution for long-term medical projects. In 2016, mass inspections of NGOs working in HIV prevention took place, after which the Russian Justice Ministry added six organizations to the foreign agent register:
- Andrey Rylkov Foundation (Moscow);
- ESVERO (Moscow);
- Sibalt (Omsk);
- Socium (Saratov Region);
- Panacea (Penza Region);
- Era of Health (Sverdlovsk Region).
In recent years, major Western universities have also begun to be regularly declared “undesirable” in Russia. In 2025, Yale University was added to this list, resulting in the suspension of joint systematic projects with St. Petersburg State University and Kazan University (T-invariant reported on this in detail).
Why the Association of Medical Workers of Chapayevsk Was Labeled a Foreign Agent
According to documents available to T-invariant, in 2014–2015 the association was repeatedly inspected by various agencies, including the Center for Countering Extremism of the Main Directorate of the Interior Ministry for the Samara Region (June–July 2014) and the Federal Drug Control Service (November 2014 and February 2015). Nevertheless, the organization annually reported its foreign funding as required by law.
The Russian Justice Ministry also inspected the association — first twice in 2014. An unscheduled inspection revealed a number of errors in the organization’s charter as well as the receipt of funds from foreign sources. However, according to the ministry, the association was not involved in political activities at that time. In December of the same year, a scheduled inspection produced the same results — no significant violations of Russian legislation were found. All comments from the Justice Ministry were corrected, and the revised charter was approved.
However, in 2016 a new inspection, specifically aimed at identifying signs of an NGO performing the functions of a foreign agent, found evidence of foreign influence and political activity in the association’s work. As foreign funding, the authorities cited receipts from the U.S. National Institutes of Health from 2013 to 2016 for the project “Dioxins. Pubertal Growth and Development of Boys in the City of Chapayevsk.” During this period, the association received approximately 23.3 million rubles for its research with Harvard. Also classified as foreign funding was U.S. State Department grant SRS500-13GR-189 dated September 30, 2013, for the project “The Impact of Organic Pollutants and Endocrine-Disrupting Substances on Health.” This amounted to another approximately 2.8 million rubles.
The authorities cited as evidence of political activity the association’s cooperation with the Samara Regional Duma — the organization was a member of the NGO Council under it. Also cited was the fact that the head of the association, Sergeev, attended meetings of the council’s sections on healthy lifestyles and physical culture, and on the provision of social services to the population. At that time, the council supported a bill banning smoking advertising in public places, the allocation of a building for a sports medicine and physical therapy center, and other initiatives. From this activity, the conclusion was drawn that Sergeev was influencing political decisions in the region.
In addition to research on male health, the Association of Medical Workers carried out HIV prevention programs — in particular, work with people who use drugs on the streets. For example, they provided free condoms and exchanged used syringes for new ones to reduce the risk of infection. The Justice Ministry’s decision noted that similar programs are implemented by the Global Fund to Fight AIDS, Tuberculosis and Malaria, the Soros Foundation, and others. In the ministry’s view, the ideology of these organizations in the context of HIV prevention is aimed at prioritizing the rights of vulnerable groups: sexual minorities, drug users, and sex workers. The harm reduction programs of these foundations, according to the Justice Ministry, proceed from the premise that drug users do not wish to overcome their addiction, and therefore they should be provided with the opportunity to use drugs without contracting HIV.
The ruling concluded that such a policy contradicts the state’s HIV prevention policy, which promotes complete freedom from drug dependence. In other words, the NGO was participating in “projects aimed at imposing practices contrary to Russia’s national interests.” After the final inspection, the organization was ordered to voluntarily register as a foreign agent by November 30, 2016. However, already on October 13, administrative protocols were drawn up against both the legal entity of the association and Sergeev personally under Article 19.34, Part 1, and the case was sent to court.
The NGO collected supportive letters from representatives of the Harvard School of Public Health, the Institute of Economic Forecasting of the Russian Academy of Sciences, the Institute of General Genetics of the Russian Academy of Sciences, the chief narcologist of the city, and Dmitry Blynsky, who at that time was the head of the Chapayevsk city district (he resigned in November 2016). T-invariant has these letters as well. Blynsky noted that the organization’s work meant a great deal for Chapayevsk — in particular, laboratory equipment purchased with grant money was also used for diagnosing diseases among city residents. Jobs were created for medical workers, and thanks to the research, measures were taken to improve the environmental situation in the region. In addition, according to Blynsky, Sergeev was actively involved in the life of the city overall. For example, he organized one of the best health centers in Russia at the Chapayevsk Central City Hospital, which by that time had already been visited by more than 10% of the townspeople.
Harvard professor and physician Russ Hauser (with more than 700 published studies and over 47,000 citations) emphasized in his letter that the Russian study had produced numerous new confirmations of how certain chemical substances adversely affect health. He called the work unique and of great importance for world science and global public health. Hauser also confirmed that American researchers receive only depersonalized participant data.
But none of this helped. On November 8, 2016, the Chapayevsk City Court found the association guilty of violating the foreign agent law and imposed a fine of 300,000 rubles. Shortly afterward, on November 22, Oleg Sergeev was also fined 50,000 rubles. The court decisions were upheld on appeal in early 2017.
A new grant from the U.S. National Institutes of Health, which the association had planned to receive at the end of 2016 for another five years and which had apparently already been approved, was never received. In 2019, the association was removed from the foreign agent register because it had stopped receiving foreign funding.
In August 2017, the Association of Medical Workers of Chapayevsk and Oleg Sergeev personally filed complaints against Russia with the European Court of Human Rights. The court awarded the applicants €6,500 in pecuniary damage, €10,000 in non-pecuniary damage, and another €3,000 to cover legal costs. In 2023, the Association of Medical Workers of Chapayevsk was officially dissolved.
T-INVARIANT BACKGROUND
Oleg Vladimirovich Sergeev is an endocrinologist, Candidate of Medical Sciences, researcher, and author or co-author of many scientific papers (h-index — 23). Since 1997, he worked as an endocrinologist in Chapayevsk, later headed the local Health Center, and was the coordinator of the WHO European Office’s “Healthy Cities” project for Chapayevsk. From 2018 to 2024, he worked as a senior researcher at the A.N. Belozersky Research Institute of Physico-Chemical Biology at Moscow State University, and later became head of the Genome Structure Laboratory at the same institute. He is currently a lead researcher at the Laboratory of Reproductive Disorder Genetics at the Academician N.P. Bochkov Medical Genetic Research Center and teaches at Skoltech.
What the Chapayevsk Research Found
The Russian study of children’s health in Chapayevsk is an epidemiological study belonging to the category of population-based prospective cohort studies. Such studies are used, among other things, to determine which factors increase the risk of a particular disease. For this, a sufficient number of participants is required, and they usually need to be observed over a long period. In addition, the data sometimes need to be verified in additional studies to confirm a causal relationship rather than a random correlation.
That is why such studies require long-term and, as a rule, substantial funding. For example, the Diet and Health Study organized by the U.S. National Cancer Institute involves more than half a million retirees and has been running for over 30 years.
In Chapayevsk, between 2003 and 2005, scientists began observing 516 boys aged 8–9. Every year, in the month of their birth, they were examined until 2017 — approximately until the age of 22. At the beginning of the study, doctors assessed the boys’ health, collected information about their lifestyle, including diet. They also measured 53 anthropometric indicators, including weight and height, assessed indicators of pubertal development, and collected blood and urine samples. Some measurements were then repeated annually, others every two years. From the age of 18, semen samples were also collected from the boys. These were used not only in the main study but also in the work funded by the Russian Science Foundation grant. Based on the results, the scientists published dozens of scientific papers — mostly related to the search for links between the concentration of harmful compounds in the participants’ biological samples and their pubertal development or reproductive health.
For example, a 2013 paper showed that the concentration of organochlorine pesticides in the blood of boys living within two kilometers of the industrial complex was 64% higher than in those who lived more than five kilometers away. It was also higher among those who had lived in the city for more than three years and consumed more local dairy products. These results indicate that the environment remains contaminated with pesticides despite the cessation of production, and that these substances can enter the human body.
Papers published in 2009 and 2014 assessed the relationship between high concentrations of dioxins and organochlorine pesticides in the blood and delayed onset of puberty in boys. The observed effect was small, and in one of the studies it disappeared after adjusting for height and body mass index, which can also influence pubertal development. To confirm the causal relationship and understand exactly how organochlorine pesticides affect the body, the scientists planned additional research.
Scientific papers based on the Chapayevsk study continued to be published even after the organization was labeled a foreign agent. In 2017, Sergeev and other Russian scientists, together with colleagues from the Harvard School of Public Health, published a paper on the link between high levels of lead in the blood and shorter stature in boys, and in 2019 — with delayed pubertal development. According to the analysis, boys with the highest lead exposure could be on average 2.5 cm shorter than their peers by age 18. They also entered puberty later, although the study showed that this was associated with delayed growth rather than the effect of lead itself.
In 2020, a paper was published on the relationship between elevated levels of dioxins and other harmful compounds in the blood and impaired growth. Earlier, researchers had found that these substances were associated with shorter stature in boys up to age 12. In this paper, they assessed how their growth changed at older ages, when they had almost reached adult height. The association persisted.
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Cooperation between Russian and American scientists continued. Over the course of the study in Chapayevsk, a unique biobank of more than 30,000 biological samples was collected, along with a bank of primary information on participants that includes about 1,000 parameters. These materials can be studied for many years to come.
For example, in April and July 2022, papers were published jointly with scientists from Harvard and other universities on the link between elevated concentrations of phthalates in urine and delayed puberty and poor sperm quality. It turned out that exposure to phthalates may delay puberty by six months to a year and likely worsens sperm quality, for example, reducing the number of motile sperm by almost a third.
In 2023, a paper was published on the negative impact of dioxins and polychlorinated biphenyls on the progression of puberty. Its results were contradictory: some compounds accelerated puberty, others slowed it down, which may be due to statistical errors. In 2024, the scientists published a study on the individual variability of semen parameters — they were looking for biomarkers whose levels are normally similar across different men. Such compounds can be used in the future to assess fertility and reproductive health.
Today, Oleg Sergeev and his colleagues continue to study the impact of the environment on human reproductive function, but no new studies based on Chapayevsk data have been published in the past two years. Additional research is needed to confirm the causal link between exposure to dioxins and organochlorine pesticides and slower growth and puberty, as well as to understand the mechanisms of this effect. It is possible that such studies would have been carried out if the scientists had not faced obstacles in obtaining funding and politically motivated accusations.