Why Do Kids Get Antibiotic-Resistant Infections More Often Now?
Written by Dr. Michael Brooks, Cardiovascular & Chronic Disease Content Specialist
Reviewed for medical accuracy under the Ivermectinkart Editorial Policy
Introduction
Antibiotic-resistant infections are an increasing concern in children, but the trend is more complicated than saying every childhood infection is becoming harder to treat. Resistance develops in bacteria—not in the child—when bacteria acquire changes that allow them to survive medicines that previously killed them. Antibiotic exposure creates pressure that favors these resistant bacteria, while resistant germs can also spread between people, healthcare settings, communities, food, and the environment. Children may be particularly affected because they experience frequent infections, receive antibiotics relatively often, have close contact with other children, and—especially as infants—can be biologically vulnerable to serious bacterial disease. At the same time, resistance trends vary substantially between bacteria, antibiotics, countries, and healthcare settings. This article explains why antibiotic-resistant infections appear more often in some children today, which factors matter most, and what families can do without avoiding antibiotics when they are genuinely needed.
Are Antibiotic-Resistant Infections Really Becoming More Common in Children?
For some important bacteria and settings, yes—but not universally. Recent pediatric and global surveillance shows a substantial burden of resistance, while trends for individual infections can rise, remain stable, or even decline.
The American Academy of Pediatrics states that antibiotic-resistant infections are becoming more common among children and adolescents. Meanwhile, the WHO Global Antibiotic Resistance Surveillance Report 2025 found widespread resistance across bloodstream, urinary, gastrointestinal, and other bacterial infections using surveillance data from more than 100 countries.
However, “antibiotic resistance is increasing” should not be interpreted as meaning every resistant organism is increasing everywhere. A 2026 study across 40 U.S. children's hospitals found that hospitalizations involving methicillin-resistant Staphylococcus aureus (MRSA) decreased between 2016 and 2024, although severe cases requiring intensive care did not show the same decline.
Other pediatric organisms have shown concerning resistance patterns. A multicenter U.S. study of Streptococcus pneumoniae isolates from children found significant increases over time in resistance to one or more antibiotic classes, multiple classes, and macrolide antibiotics.
The useful takeaway is therefore not that every child is suddenly at high risk. It is that doctors increasingly need to consider local resistance patterns and a child's previous medical and antibiotic history when treating certain bacterial infections.
Children do not become “resistant” to antibiotics. Bacteria become resistant. A child who has recently taken antibiotics may carry bacteria that have survived that exposure, but resistant bacteria can also be acquired from other people, healthcare environments, food, animals, or the wider community.
Why Are Antibiotic-Resistant Infections Becoming More Common in Kids?
Several forces contribute at the same time. Antibiotic use is important, but resistance is also driven by transmission, healthcare exposure, global movement of bacteria, infection-control conditions, and gaps in the development of child-appropriate medicines.
Antibiotics create selection pressure
Whenever an antibiotic is used, susceptible bacteria are more likely to be killed while bacteria capable of surviving the treatment gain an advantage. Those surviving bacteria can multiply and spread.
This does not mean antibiotics should be avoided when a child has a bacterial infection that needs treatment. Antibiotics save lives. The problem is unnecessary exposure, overly broad treatment, or treatment that is longer than clinically required.
The AAP pediatric antibiotic stewardship guidance emphasizes using antibiotics only when needed and choosing the appropriate medicine, dose, route, and duration. The AAP notes that antibiotic overuse contributes to resistance while also exposing children to problems such as diarrhea, rashes, allergic reactions, and other adverse effects.
Antibiotics are often given for respiratory illnesses
Children develop many respiratory infections, particularly during their early years. Most colds, influenza, bronchiolitis, and many cough illnesses are viral, which means antibiotics cannot treat them.
The AAP Red Book notes that a large proportion of outpatient pediatric antibiotics are prescribed for respiratory conditions and that unnecessary antibiotic exposure can increase a child's likelihood of carrying resistant respiratory bacteria such as Streptococcus pneumoniae and Haemophilus influenzae.
Resistant bacteria can spread without a child taking antibiotics
Antibiotic exposure is only part of the story. Once a resistant strain exists, it can pass from one person to another.
The CDC explanation of how antimicrobial resistance spreads describes resistant germs moving through healthcare facilities, communities, food, animals, and the environment.
That means a child can acquire resistant bacteria even if that child has rarely or never taken antibiotics.
Why antibiotic resistance can affect children
Factor | How It Contributes | Why It Matters for Children |
Unnecessary antibiotic use | Selects bacteria that survive antibiotic exposure | Children frequently develop illnesses for which antibiotics may be considered |
Broad-spectrum antibiotics | Affect a wider range of bacteria and can increase selection pressure | Narrower treatment may sometimes be sufficient when the bacterial cause is known |
Close contact | Helps resistant bacteria move between people | Daycare, school, sports, and households create frequent opportunities for transmission |
Healthcare exposure | Can expose children to resistant organisms | Hospitalized children and those with complex medical needs may have greater exposure |
International spread | Resistant organisms cross borders through people, food, and the environment | Local infections can reflect wider global resistance patterns |
Limited pediatric medicines | Fewer formulations and pediatric trials may restrict treatment options | Babies and young children cannot always use medicines in the same way as adults |
Why Can Babies and Young Children Be Especially Vulnerable?
Infants face a combination of biological vulnerability and fewer treatment options. Their immune systems are still developing, and serious bacterial infections can progress quickly.
WHO notes that neonates and infants are especially vulnerable to antimicrobial-resistant infections and that appropriate pediatric formulations for some antibiotics remain limited. WHO has therefore prioritized the development of additional age-appropriate antibiotic formulations for children.
Infants can develop serious infections quickly
Very young babies are more susceptible to illnesses such as bloodstream infection, meningitis, pneumonia, and urinary tract infection. Doctors may need to begin antibiotics before the exact bacterium has been identified when a young infant appears seriously ill.
That early treatment can be lifesaving. At the same time, better diagnostic testing can help clinicians narrow or stop antibiotic treatment once laboratory results provide more information.
Resistant urinary bacteria are an important example
A CDC surveillance study examined two major categories of resistant Enterobacterales in U.S. children:
carbapenem-resistant Enterobacterales, or CRE, and extended-spectrum beta-lactamase-producing Enterobacterales, often abbreviated ESBL-E.
The CDC pediatric resistant Enterobacterales surveillance study found that most identified infections involved urine and that rates of both CRE and ESBL-E infections were consistently highest among infants. Many ESBL-E infections were community-associated rather than restricted to hospitals.
That last point is important. Antibiotic resistance is no longer exclusively a hospital problem.
Which Resistant Infections Can Affect Children?
Children can develop resistant versions of many ordinary bacterial infections. Resistance describes the bacterium's response to antibiotics; it does not necessarily create a completely different illness.
For example, a urinary tract infection caused by resistant E. coli may initially produce the same fever, urinary discomfort, abdominal pain, or nonspecific symptoms as a susceptible E. coli infection. The difference may become apparent only when laboratory testing shows that commonly used antibiotics will not work.
Examples of resistant bacteria relevant to childhood infections
Bacterium or Resistance Pattern | Infections It May Cause | Why Resistance Matters |
ESBL-producing E. coli or Klebsiella | Urinary tract infections, bloodstream infections | Many commonly used beta-lactam antibiotics may no longer work |
Carbapenem-resistant Enterobacterales (CRE) | UTIs, bloodstream and healthcare-associated infections | Treatment options can be substantially limited |
Drug-resistant Streptococcus pneumoniae | Ear infections, pneumonia, sinusitis, meningitis | Resistance patterns can affect antibiotic selection |
MRSA | Skin infections and, less commonly, serious invasive infections | Standard antibiotics used for susceptible S. aureus may not work |
These patterns do not mean every infection caused by these organisms is highly drug resistant. Laboratory susceptibility testing is used when appropriate to determine which antibiotics remain effective.
One encouraging point is that prevention also changes resistance patterns. Vaccination against organisms such as Streptococcus pneumoniae can prevent infections in the first place, reducing both antibiotic use and opportunities for resistant strains to spread.
How Does Antibiotic Use Affect a Child’s Future Risk?
Antibiotic treatment can temporarily change the population of bacteria living on and inside the body. Susceptible bacteria may disappear while resistant organisms survive, making resistant bacteria more likely to be detected after recent antibiotic exposure.
That does not mean one necessary prescription permanently causes antibiotic resistance. The relationship depends on the antibiotic, organism, number and timing of exposures, healthcare setting, and many other factors.
The right antibiotic can still be essential
Parents should not interpret antibiotic stewardship as a reason to refuse antibiotics when a clinician recommends them for a bacterial infection.
Conditions such as bacterial meningitis, sepsis, certain pneumonias, urinary tract infections, and some skin infections can become dangerous without prompt antibiotic treatment. When antibiotics are needed, their benefits can greatly outweigh the resistance risk.
“Stronger” is not automatically better
Broad-spectrum antibiotics cover many different bacteria. Sometimes this coverage is necessary, especially when a child is seriously ill and the cause is not yet known.
Once cultures or other testing identify the bacterium, clinicians can sometimes switch to a narrower antibiotic that targets the organism more precisely. This approach can reduce unnecessary selection pressure without compromising treatment.
Longer treatment is not automatically safer
Antibiotics should be taken for the prescribed duration. Parents should not independently shorten treatment, but neither should antibiotics be continued beyond the recommended course “just to make sure” the infection has disappeared.
Modern pediatric stewardship increasingly focuses on using the shortest evidence-supported course that adequately treats the infection.
What Can Parents Do to Reduce Antibiotic Resistance?
Parents do not need to become experts in bacterial genetics. Several practical habits can reduce unnecessary antibiotic exposure and help prevent infections that might otherwise require treatment.
You can:
Ask whether an illness is likely bacterial or viral.
Ask whether testing is needed before starting an antibiotic.
Give antibiotics exactly as prescribed.
Do not use antibiotics prescribed for another person.
Do not save leftover antibiotics for a future illness.
Do not pressure a clinician for antibiotics when they are unlikely to help.
Keep routine childhood vaccinations up to date.
Encourage regular handwashing.
Follow safe food-handling practices.
Teach children to cover coughs and avoid sharing items that may spread infections.
CDC's updated outpatient stewardship framework emphasizes improving prescribing systems so patients receive antibiotics when they provide a clear health benefit while avoiding unnecessary use.
Parents can also tell the clinician about recent antibiotic treatment, previous resistant infections, hospitalization, international healthcare exposure, or previous laboratory culture results. Those details may affect which tests or antibiotics are appropriate.
When Does a Possible Resistant Infection Need Medical Attention?
You usually cannot identify antibiotic resistance from symptoms alone. A child whose bacterial infection is not improving as expected may need reassessment, cultures, or a change in treatment, but treatment failure can also result from an incorrect diagnosis, complications, poor absorption, or another infection.
Contact the child's healthcare professional if symptoms significantly worsen, fever persists or returns, pain or swelling increases, the child cannot keep medicine down, or the child's condition is not improving within the timeframe the clinician gave you.
Seek urgent medical care for signs of severe illness such as:
Difficulty breathing
Unusual sleepiness or difficulty waking
Confusion or marked changes in behavior
Seizures
Severe dehydration or very little urine
Rapidly worsening skin redness or swelling
Severe pain or a child who looks seriously unwell
Sepsis is a medical emergency. CDC describes warning signs including confusion, extreme pain or discomfort, fever or feeling very cold, shortness of breath, clammy skin, and a high heart rate or weak pulse.
Very young infants require additional caution. A temperature of 100.4°F (38.0°C) or higher in a young infant warrants prompt medical evaluation because fever can be the first sign of a serious bacterial infection.
Conclusion
Antibiotic-resistant infections are an increasing pediatric concern because resistant bacteria can be selected by antibiotic use and then spread through families, communities, healthcare facilities, food, and the environment. Children may face particular exposure through frequent infections and close contact, while infants and medically complex children can be especially vulnerable. However, resistance trends vary, and antibiotics remain essential when a bacterial infection genuinely requires them.
Parents can help by supporting accurate diagnosis, using antibiotics exactly as prescribed, avoiding unnecessary treatment, keeping vaccinations current, and seeking reassessment when an infection is not improving as expected.
Frequently Asked Questions
1. Can a child become resistant to antibiotics?
No. The bacteria causing or colonizing the child become resistant, not the child's body. Antibiotic exposure can favor resistant bacteria, but children can also acquire resistant germs from other people, healthcare environments, food, animals, or the community.
2. Does giving my child antibiotics once cause antibiotic resistance?
One appropriate course does not mean your child will develop a resistant infection. However, every antibiotic exposure can create some selection pressure on bacteria. This is why clinicians try to prescribe antibiotics only when the expected benefit justifies their use.
3. Why don’t antibiotics work for colds and flu?
Colds and influenza are caused by viruses, while antibiotics target bacteria. Taking an antibiotic for a viral infection provides no antibacterial treatment benefit and can cause side effects while selecting resistant bacteria. Supportive or antiviral treatment may be appropriate depending on the illness.
4. Can kids catch antibiotic-resistant bacteria from each other?
Yes. Resistant bacteria can spread between people just as susceptible bacteria do. Close contact in households, schools, childcare, sports, and healthcare settings can provide opportunities for transmission, which is why hand hygiene and infection prevention remain important.
5. How does a doctor know whether an infection is antibiotic resistant?
Laboratory testing can identify the bacterium and determine which antibiotics are likely to work. Cultures are particularly useful for certain urinary, bloodstream, wound, and serious infections. Treatment may start before results are available when delaying antibiotics would be unsafe.
6. Should I avoid antibiotics because of resistance?
No. Antibiotics can be lifesaving when a child has a bacterial infection that requires treatment. The goal is appropriate use—not avoiding necessary care. Give prescribed antibiotics correctly and discuss questions about the medicine, duration, or diagnosis with the child's healthcare professional.
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