Reported Reactions

Adverse event reports that FDA received

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Infection adverse event reports that record this term

Kind of term
MedDRA preferred term
Plain meaning
an infection, type not specified

What a report is

A report is not proof that the drug was the cause of the event.

FDA says:

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

There is no certainty that the reported event (adverse event or medication error) was actually due to the product. FDA does not require that a causal relationship between a product and event be proven, and reports do not always contain enough detail to properly evaluate an event. The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

Reports on file

From January 2004 to June 2026, FDA received 142,070 adverse event reports that record the MedDRA preferred term Infection. In plain words, the term means: an infection, type not specified. The person who codes a report selects the term that agrees best with the description of the reporter.

FDA received 9,267 reports in the 12 months to June 2026 and 10,204 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

By reports in the 12 months to June 2026, this term was number 66 of 1,436 reaction terms with a page. Of the 1,332,454 drug reports that FDA received in the 12 months to June 2026, 9,267 (0.7%) record this term. Reports for male patients were 31.8% of the reports that record this term and 34.6% of all drug reports.

The number of people who use the product is not in the data. A count is not a rate.

MedDRA

The Medical Dictionary for Regulatory Activities. The person who codes a report selects the preferred term that agrees best with the description of the reporter. FDA does not publish the description.

Plain meaning

An infection, type not specified. The words are from the fixed dictionary of this site. They add nothing to a report.

Data version

openFDA FAERS release of 29 Oct 2026. Reports received through 30 Jun 2026.

Drugs in these reports

The table has the 87 drug pages with 1,000 or more reports that record this term. The rows are in order of name. A drug page with fewer reports for this term is not in the table. The counts are the counts that the site keeps for each reaction term, and a count can be lower than the count of FDA.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Drugs that the reports with the term Infection name as a suspect product, in order of name
DrugClassReports with this term
AbataceptSelective T cell costimulation modulator1,209
Acetaminophen3,618
Acetaminophen Oxycodone Hydrochloride1,203
ActemraInterleukin-6 receptor antagonist6,830
AdalimumabTumor necrosis factor blocker2,681
Alendronate sodiumBisphosphonate2,077
Alendronic Acid1,363
AravaAntirheumatic agent4,039
AzathioprinePurine antimetabolite1,165
CarboplatinPlatinum-based drug1,385
CelebrexNonsteroidal anti-inflammatory drug1,366
CelecoxibNonsteroidal anti-inflammatory drug1,241
Certolizumab pegolTumor necrosis factor blocker1,662
CetirizineHistamine-1 receptor antagonist1,840
Cetirizine hydrochlorideHistamine-1 receptor antagonist2,434
Cetirizine hydrochloride, pseudoephedrine hydrochlorideHistamine-1 receptor antagonist1,385
Chloraprep1,184
Chlorhexidine2,342
Chlorhexidine gluconate1,244
CimziaTumor necrosis factor blocker5,325
CortisoneCorticosteroid1,184
Cortisone acetateCorticosteroid2,058
CosentyxInterleukin-17A antagonist4,137
CyclophosphamideAlkylating drug3,859
CyclosporineCalcineurin inhibitor immunosuppressant1,042
CytarabineNucleoside metabolic inhibitor1,615
DesoximetasoneCorticosteroid3,111
DexamethasoneCorticosteroid2,996
Dianeal Low Calcium Peritoneal Dialysis Solution with Dextrose1,098
DiclofenacNonsteroidal anti-inflammatory drug2,226
Diclofenac potassiumNonsteroidal anti-inflammatory drug1,324
Diclofenac sodiumNonsteroidal anti-inflammatory drug2,829
DoxorubicinAnthracycline topoisomerase inhibitor1,401
DupixentInterleukin-4 receptor alpha antagonist2,508
EnbrelTumor necrosis factor blocker12,358
Erelzi2,194
EtoposideTopoisomerase inhibitor1,822
Flumethasone Pivalate1,141
Folic acid3,244
FosamaxBisphosphonate2,942
GolimumabTumor necrosis factor blocker1,073
Human immunoglobulin gHuman immunoglobulin G1,102
Humira12,557
HydrocortisoneCorticosteroid1,171
HydroxychloroquineAntimalarial3,324
Hydroxychloroquine sulfateAntimalarial2,972
InfliximabTumor necrosis factor blocker2,939
Isopropyl alcoholStandardized chemical allergen1,126
KevzaraInterleukin-6 receptor antagonist1,359
LeflunomideAntirheumatic agent4,592
LenalidomideThalidomide analog1,072
Lyrica1,735
MethotrexateFolate analog metabolic inhibitor9,923
Methotrexate sodiumFolate analog metabolic inhibitor1,766
Mycophenolate mofetilAntimetabolite immunosuppressant2,875
NaproxenNonsteroidal anti-inflammatory drug1,117
Naproxen sodiumNonsteroidal anti-inflammatory drug1,298
OrenciaSelective T cell costimulation modulator7,366
OtezlaPhosphodiesterase 4 inhibitor2,391
OxycodoneOpioid agonist2,754
Oxycodone hydrochlorideOpioid agonist1,501
Oxycodone Terephthalate2,497
Periogard1,967
Phthalylsulfathiazole2,351
PlaquenilAntimalarial2,009
PomalystThalidomide analog1,058
PrednisoloneCorticosteroid1,742
PrednisoneCorticosteroid7,204
Pseudoephedrine1,457
Pseudoephedrine hydrochloridealpha-Adrenergic agonist1,701
RemicadeTumor necrosis factor blocker5,556
RevlimidThalidomide analog3,562
RinvoqJanus kinase inhibitor1,164
RituxanCD20-directed cytolytic antibody1,861
RituximabCD20-directed cytolytic antibody9,198
SimponiTumor necrosis factor blocker5,308
StelaraInterleukin-12 antagonist2,715
Sulfamethoxazole2,196
Sulfamethoxazole and trimethoprimDihydrofolate reductase inhibitor antibacterial1,159
Sulfamethoxazole, trimethoprimDihydrofolate reductase inhibitor antibacterial1,375
SulfasalazineAminosalicylate4,419
TacrolimusCalcineurin inhibitor immunosuppressant1,405
TocilizumabInterleukin-6 receptor antagonist1,987
TysabriIntegrin receptor antagonist1,579
VenetoclaxBCL-2 inhibitor1,087
Vincristine1,945
XeljanzJanus kinase inhibitor6,256

The page of each drug has the count of each reaction term in its reaction lookup.

Drug classes in these reports

The table has the 54 pharmacologic classes with 1,000 or more reports that record this term. The rows are in order of name.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Pharmacologic classes of the drugs that the reports with the term Infection name, in order of name
ClassReports with this term
Alkylating drug7,021
alpha-Adrenergic agonist1,715
Aminosalicylate4,848
Anthracycline topoisomerase inhibitor2,749
Anti-epileptic agent1,309
Antimalarial8,321
Antimetabolite immunosuppressant3,518
Antirheumatic agent8,631
Atypical antipsychotic3,131
BCL-2 inhibitor1,878
Benzodiazepine1,294
beta2-Adrenergic agonist1,154
Bisphosphonate5,905
Blood coagulation factor1,392
Calcineurin inhibitor immunosuppressant3,045
CD20-directed cytolytic antibody13,701
Complement inhibitor1,131
Corticosteroid27,480
Dihydrofolate reductase inhibitor antibacterial3,002
Endothelin receptor antagonist1,715
Fluoroquinolone antibacterial1,234
Folate analog metabolic inhibitor12,034
Histamine-1 receptor antagonist6,673
Human immunoglobulin G2,570
Insulin analog1,029
Integrin receptor antagonist2,911
Interleukin-12 antagonist3,500
Interleukin-17A antagonist4,998
Interleukin-4 receptor alpha antagonist2,609
Interleukin-6 receptor antagonist10,466
Janus kinase inhibitor9,940
Kinase inhibitor7,757
Leukocyte growth factor1,088
Microtubule inhibitor1,323
Nonsteroidal anti-inflammatory drug13,203
Nucleoside metabolic inhibitor5,989
Opioid agonist9,369
Osmotic laxative1,584
Phosphodiesterase 4 inhibitor3,100
Platinum-based drug2,984
Programmed death Receptor-1 blocking antibody1,324
Prostacycline vasodilator1,128
Proteasome inhibitor2,251
Proton pump inhibitor2,515
Purine antimetabolite1,527
Selective T cell costimulation modulator8,575
Standardized chemical allergen1,846
Substance P/Neurokinin-1 receptor antagonist1,019
Tetracycline-class drug1,990
Thalidomide analog5,967
Topoisomerase inhibitor2,209
Tumor necrosis factor blocker39,086
Vascular endothelial growth factor inhibitor1,359
Vitamin C1,128

A class with many reports in all has many reports for almost every term.

Reports by month

Reports that record Infection, by month, five years to June 2026
01,0002,00020222023202420252026

FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Patients in these reports

Age of the patient in the reports that record Infection
AgeReportsShareShare as a bar
Under 27030.5%
2 to 111,8021.3%
12 to 171,3951%
18 to 4417,56612.4%
45 to 6431,19022%
65 to 7416,87711.9%
75 and over11,9338.4%
Age not given60,60442.7%
Sex of the patient in the reports that record Infection
SexReportsShareShare as a bar
Female76,36453.8%
Male45,11731.8%
Unknown or not given20,58914.5%

Age and sex are as the report gives them. 53.7% of these reports give the United States as the country.

Terms near this one

Official pages

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Reported Reactions. Infection: adverse event reports that record this term. https://reportedreactions.com/reaction/infection/ Source: U.S. Food and Drug Administration, openFDA Drug Adverse Event (FAERS) files, release of . Reports received through .

Where the data come from

The counts come from the openFDA Drug Adverse Event (FAERS) bulk files, release of 29 Oct 2026. The files have the reports that FDA received through 30 Jun 2026. A drug name is the name on the report. The site matches it to a brand name or a generic name of the National Drug Code Directory of 2 Nov 2026. A class is the pharmacologic class (EPC) of the FDA label.

The count has the reports with each spelling of one MedDRA preferred term. The site does not publish a report narrative, a lot number, a detail of a patient or the identity of a reporter. The record of FDA is the authority. See how the site counts reports, the data sources and the corrections page.

Questions

What does Infection mean in an adverse event report?

In plain words: an infection, type not specified. It is a MedDRA preferred term. FDA codes the description of a reporter with the MedDRA dictionary. The openFDA files do not have the description itself, and this site does not show it.

Does a drug in the table mean that the drug was responsible for this reaction?

No. FDA says:

No individual drug is connected to any individual reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

When a report lists multiple drugs and multiple reactions, there is no way to conclude from the data therein that a given drug is responsible for a given reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

What does this page tell a person who has this symptom?

This page gives counts of reports. It cannot assess a person. A pharmacist or a clinician can assess a person.

If this is a medical emergency, please call 911.

Source: FDA, MedWatch Online Voluntary Reporting Form. The site read the page on .