Evidence map›Paper›PMID 42116232›Full record

ReviewEmerging infectious diseases2026

Three Fatal Gestational Psittacosis Cases Caused by Chlamydia psittaci Strains Belonging to Closely Related Lineages, Japan.

Atsuko Nishino, Yukiko Nakura, Yukiko Sassa-O'Brien, Momoko Soeda, Hirokazu Sugii, Kanako Shimizu, Shiro Miura, Yumiko Sato, Michinobu Yoshimura, Michiko Kodama and 1 more

Abstract readCase ReportsReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Emerging infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Antimicrobial Management of SevereInfection and drug resistance · 2026
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Atsuko Nishino
Yukiko Nakura
Yukiko Sassa-O'Brien
Momoko Soeda
Hirokazu Sugii
Kanako Shimizu
Shiro Miura
Yumiko Sato
Michinobu Yoshimura
Michiko Kodama
Itaru Yanagihara

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gestational psittacosis is a rare infectious disease caused by Chlamydia psittaci that causes high maternal and fetal mortality rates. In Japan, gestational psittacosis has been reported in 7 patients, including 4 maternal deaths without antemortem diagnosis. We molecularly diagnosed C. psittaci infection postmortem in 3 patients treated during 2017-2024. We extracted DNA from formalin-fixed paraffin-embedded placenta, lung, and spleen tissues. Analysis of multilocus sequence typing indicated sequence type (ST) 269 in 1 patient and ST335 in 2; all 3 were closely related lineages that have not been previously reported in Japan or in animals. However, the ompA gene showed distinct clusters in the phylogenetic analysis. Quantitative PCR and immunostaining revealed higher amounts of C. psittaci detected in placenta than in lung or spleen, suggesting that proliferation of C. psittaci in the placenta might cause severe symptoms. ST335/ST269 lineage could be highly virulent strains for pregnant women.

Indexed as

Chlamydophila psittaciPregnancy Complications, InfectiousPsittacosisAdultAnimalsFatal OutcomeFemaleHumansJapanMultilocus Sequence TypingPhylogenyPlacentaPregnancybacteriaChlamydia psittacigestational psittacosisJapanmultilocus sequence typingzoonoses

Identifiers

PMID42116232
PMCPMC13175100

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.