Drug target
Ribosomes, wall-building enzymes and gyrases are classic aims; a changed target may bind the drug less well.
Antibiotic resistance — A shared drug budget under selection in hospitals, farms and wastewater — stewardship, not a lab manual.
Darker cells mean a higher score for this topic on that metric.
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Last reviewed Sources & creditsMedia creditsMethodology
Read Identity → How they live → Body & health, then use compare rails.
Public-health education — not a care plan, prescription, or outbreak briefing.
It names everyday desks for Change & defence before English norms look universal.
No — editorial 0–100 browsing aids inside this atlas only.
Use related cards and best-of / quiz rails after the first three chapters.
How they live and Body & health carry mechanisms; skim Identity first.
A cell can alter a target, destroy a drug, pump it out, or block entry. Those are categories, not instructions.
Spread is often social: conjugation and other gene transfer move cassettes faster than waiting for a new mutation in every lineage.
Ribosomes, wall-building enzymes and gyrases are classic aims; a changed target may bind the drug less well.
Beta-lactamases cut penicillins and related drugs. Extended-spectrum and carbapenemase families widened the problem.
Membrane pumps lower the internal dose. They often move several chemical classes at once.
Gram-negative outer membranes can admit less drug when porin patterns shift.
Mobile DNA files resistance genes in stacks that can hop between cells.
Some cells survive a pulse without heritable resistance. That is a different, still conceptual, problem.
A drug reaches a community in a patient, animal or pipe.
Susceptible cells fall; already resistant or lucky mutants remain.
Plasmids and phages can move successful cassettes to new species.
A treatment that used to work fails more often; labs and policies notice.
No protocol for inducing resistance belongs on an encyclopedia page for the public.
Populations of genomes, not cartoon villains — RNA viruses copy sloppily, and public-health names track clusters that spread.
Familiarity 92Antibodies, memory cells and community arithmetic — conceptual, not a prescription and not an anti-vaccine tract.
Familiarity 94Surface cities of microbes — plaque and catheters explain persistence, without a grow-your-own kit.
Familiarity 38Clean water saves lives; missing old microbial partners is a separate, still-debated immune story.
Familiarity 70Sideways DNA traffic — conjugation, transduction, transformation as names and history, not protocols.
Familiarity 45