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Can microplastics facilitate the emergence of infectious diseases?
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Researchers propose that microplastic pollution may facilitate the emergence of infectious diseases through two mechanisms: by altering exposure to pathogens such as multi-drug resistant bacteria, and by modifying the dynamics of vector-borne diseases. They note that microplastics can impair immune function and disrupt commensal microorganisms, potentially increasing susceptibility to infection. The study argues that microplastics should be considered a ubiquitous environmental hazard with implications for infectious disease emergence.
Plastic pollution is a major environmental problem. Small plastic particles (called microplastics) have been reported to have pernicious effects on human and wildlife health, by altering physiological functions (e.g., immunity, metabolism) and interfering with commensal microorganisms. However, in addition to these direct toxic effects, we suggest that microplastic pollution might also exert deleterious effects, modifying (i) the exposure to pathogens (e.g., multi-drug resistant bacteria) and (ii) the dynamics of vector-borne diseases. Therefore, we argue that microplastics should be considered as a ubiquitous environmental hazard, potentially promoting the (re)emergence of infectious diseases. The implementation of multi- and interdisciplinary research projects are crucial to properly evaluate if microplastic pollution should be added to the current list of global health threats.
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Are microplastics spreading infectious disease?
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Researchers explored whether microplastics in the environment could serve as vehicles for spreading infectious disease-causing organisms. Evidence indicates that bacteria, viruses, and other pathogens can attach to microplastic surfaces and potentially be transported across aquatic environments. The study raises important questions about a previously underappreciated pathway through which plastic pollution could affect public health.
Plastic pollution and infectious diseases
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Researchers reviewed how plastic pollution contributes to the spread of infectious diseases. The study suggests that plastic debris holding water can encourage arthropod-borne diseases by providing habitats for disease vectors, and that microplastic and nanoplastic particles may also interact with pathogens in ways that affect disease transmission in both humans and livestock.
Microplastics and pathogen risk across ecosystems: From biofilm to antimicrobial resistance and host susceptibility
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Researchers reviewing microplastic-pathogen interactions reframe the question using a vectorial-capacity lens, arguing that mere microbial detection on MP surfaces is insufficient evidence of transmission risk — and highlight that MP exposure can compromise host epithelial barriers, modulate innate immunity, and enrich antibiotic-resistant bacteria through plastisphere biofilm dynamics, though direct field-scale attribution of infection risk remains limited.
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This review examines how tiny plastic particles in the environment might weaken immune defenses and worsen viral infections. The authors synthesize existing research showing that these particles can stabilize viruses, trigger harmful inflammation in cells, and suppress the body's antiviral responses, potentially increasing susceptibility to severe infectious diseases.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.