The underlying cause of sporadic Alzheimer disease (AD) remains enigmatic, but an increased risk among spouses of people with AD has led to speculation of transmissibility. A mouse study now suggests that the transfer of microbiota could underlie this potential transmissibility, but the findings leave many questions unanswered.
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Endres, K., Schäfer, KH. Could microbiota transfer between cohabitants influence Alzheimer disease risk?. Nat Rev Neurol 19, 713–714 (2023). https://doi.org/10.1038/s41582-023-00894-z
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DOI: https://doi.org/10.1038/s41582-023-00894-z
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