Educational resource · Not a medical device · Infectious diseases review in progress · Does not replace clinical judgement

Pasteurella multocida — Pasteurella

Review by an infectious diseases specialist in progress · edited by a physician, AI-assisted writing · level of evidence computed from the source type · page as of 25 October 2026 · Methodology

Pasteurellaceae · Gram-negative

Cellulite ultra-rapide (< 24h) après morsure de chat = Pasteurella multocida jusqu'à preuve du contraire. Amoxicilline-clavulanate en 1ère intention ; la doxycycline est l'alternative en cas d'allergie aux β-lactamines. Toujours évaluer l'atteinte articulaire/tendineuse d'une morsure de la main.

Scope: dosing as described in the cited guidelines (French or international context, stated by the source), for adults with normal renal function unless stated on the line. No renal or hepatic, paediatric or pregnancy adjustment is provided systematically. These regimens have not been reviewed by any infectious-disease specialist to date.

Documented organ tropism

Organs where foci of Pasteurella multocida are described in the cited literature. The reported frequency is not an individual probability.

Organ	Tropism	Level of evidence	Sources	Spread route
Skin	High tropism	Evidence B	2	direct
Bones / Joints	Moderate tropism	Evidence B	1	direct
Lung	Rare tropism	Evidence B	1	direct
Heart / Endocardium (endocardite)	Rare tropism	Evidence B	1	hematogenous

Described portals of entry

• Skin

Spread routes recorded: 4 of 4 documented foci A focus without a route is not a focus without spread: the route is simply not recorded.

Sources

• Talan DA et al. — Bacteriologic analysis of infected dog and cat bites (1999) — doi:10.1056/NEJM199901143400202
• IDSA — SSTI Practice Guidelines (2014) — doi:10.1093/cid/ciu296

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