Transparency
Sources and methodology
Trust is built with transparency. Here are all the sources we use and the criteria we apply to classify each piece of information.
Source priority
We prioritise official and scientific sources. When information comes only from the press, it is marked as “reported” and never presented as confirmed fact.
Methodology
- We gather and summarise information published by official sources (WHO, CDC, national health authorities) and recognised news outlets.
- Every statement is classified at three levels: “confirmed” (attested by an official source or verified by multiple sources), “reported” (published by the press but not yet officially confirmed) and “unconfirmed” (a claim without public evidence).
- We explicitly separate verified fact from speculation, including cover-up allegations made by critical outlets.
- Dates and figures are attributed to the original source and reviewed as new information is published.
- Corrections are welcome: if you find an error, write to [email protected].
Sources used
27 references in total. Links lead to the original publications.
Official source
- Plague — fact sheetOrganização Mundial da Saúde (OMS)
- PlagueCDC — Centers for Disease Control and Prevention
- Irkutsk Research Anti-Plague Institute of Siberia and the Far EastInstituto Anti-Peste de Irkutsk
- Rospotrebnadzor — Serviço Federal de Vigilância à Proteção dos Direitos do Consumidor e Bem-Estar HumanoRospotrebnadzor (Rússia)
- Pneumonia of undetermined etiology — Russian Federation (Disease Outbreak News, DON620)Organização Mundial da Saúde (OMS)
Scientific reference
Epidemiological monitoring
Brazilian press
- Pesquisador em laboratório russo de pragas morre de infecção “desconhecida”CNN Brasil
- Pesquisadora morre após suspeita de infecção por peste na RússiaUOL Notícias
- Alerta de peste pulmonar na Rússia chama atenção após morte em laboratórioEstado de Minas
- Suspeita de peste negra coloca quase duzentas pessoas sob quarentena na RússiaR7
- Morte de pesquisadora na Sibéria: OMS diz que risco de peste para Europa é “muito baixo”G1
- Rússia descarta novos casos após morte de pesquisadora com pneumoniaMetrópoles
International press
- Researcher at Russian plague laboratory dies of ‘unknown’ infectionCNN
- Nearly 200 People Under Observation After Irkutsk Lab Worker Dies From PlagueThe Moscow Times
- Suspected Plague Death at Russian Lab Sparks ‘Anti-Epidemic’ LockdownNewsweek
- Suspected plague outbreak erupts in Russia after scientist dies in SiberiaNew York Post
- Plague outbreak in Russia? Hundreds quarantined after mysterious death of lab researcherIndia Today
- Casa Branca acompanha alegado surto de peste na SibériaObservador (Portugal)
- Reports of a Lethal Virus Outbreak in Russia Follow the Death of a ResearcherMother Jones
- Russia says no epidemic risk as WHO says plague lab death remains unexplainedCNN
- Rússia nega risco epidémico após morte em laboratório de peste na Sibéria e alivia medidas de quarentenaObservador (Portugal)
- Russian lab worker dies amid plague reports — here’s what we knowCNBC
- Russia lifts quarantine in Irkutsk region, where lab worker allegedly died of plagueKyiv Independent
- Cause of death still unclear for Russian plague lab worker, WHO saysAssociated Press (AP)
How to cite this site
Peste.com.br. “Sources and methodology.” Available at: https://peste.com.br/en/sources/
Corrections and suggestions
Found an error or a better source? Write to [email protected]. Relevant corrections are logged on the corrections page.