ArticleProceedings of the National Academy of Sciences of the United States of America2018
Model of bacterial toxin-dependent pathogenesis explains infective dose.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 28 citations in OpenAlex.
- Re-Emerging Bacterial Pathogens, Resistance Genes and Promising Bioindicators in Raw and Treated Sewage-Addressing a Known Issue from a Different Angle and Perspective.Microorganisms · 2026Article
- Targeting Microorganisms in Lignocellulosic Biomass to Produce Biogas and Ensure Sanitation and Hygiene.Microorganisms · 2026Review
- Article
- Resolvin D5 (RvD5) Reduces Renal Damage Caused by LPS Endotoxemia in Female Mice.Molecules (Basel, Switzerland) · 2022Article
- A strategic model of a host-microbe-microbe system reveals the importance of a joint host-microbe immune response to combat stress-induced gut dysbiosis.Frontiers in microbiology · 2022Article
- A general mathematical method for predicting spatio-temporal correlations emerging from agent-based models.Journal of the Royal Society, Interface · 2020Article
- Chronic in vivo exposure to Helicobacter pylori VacA: Assessing the efficacy of automated and long-term intragastric toxin infusion.Scientific reports · 2020Article
- Inflammatory Response to Different Toxins in Experimental Sepsis Models.International journal of molecular sciences · 2019Review
- Timing between successive introduction events determines establishment success in bacteria with an Allee effect.Proceedings. Biological sciences · 2019Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The initial amount of pathogens required to start an infection within a susceptible host is called the infective dose and is known to vary to a large extent between different pathogen species. We investigate the hypothesis that the differences in infective doses are explained by the mode of action in the underlying mechanism of pathogenesis: Pathogens with locally acting mechanisms tend to have smaller infective doses than pathogens with distantly acting mechanisms. While empirical evidence tends to support the hypothesis, a formal theoretical explanation has been lacking. We give simple analytical models to gain insight into this phenomenon and also investigate a stochastic, spatially explicit, mechanistic within-host model for toxin-dependent bacterial infections. The model shows that pathogens secreting locally acting toxins have smaller infective doses than pathogens secreting diffusive toxins, as hypothesized. While local pathogenetic mechanisms require smaller infective doses, pathogens with distantly acting toxins tend to spread faster and may cause more damage to the host. The proposed model can serve as a basis for the spatially explicit analysis of various virulence factors also in the context of other problems in infection dynamics.
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Registered trials
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