Respuesta :

bacterial infections were much harder to treat a long time ago because we didn't have the same technology or information that we do now. because we have worked so long on treating different things we have learned what works and what doesnt. the new technology has helped us understand the infection which led to us being able to find medication to treat said infection.
Oseni

Many bacterial infections are more difficult to treat now because of the evolution of drug resistance in bacteria.

Evolution of drug resistance

Bacteria evolve genetically to become resistant to drugs.

Evolution in bacteria is caused by the forces of natural selection and driven by different actions of hosts - the humans.

Natural selection selects for bacteria that are resistant to conventional antibacterial drugs and this strain multiplies and grow in population.

More on drug resistance in bacteria can be found here: https://brainly.com/question/15025581

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Universidad de Mexico