General information, not a diagnosis Method and limitations

CompareUseful differences

Compare infectious diseases

The same route of exposure may involve very different agents. Compare the mechanisms and prevention, then consult the original records and sources.

Choose up to four diseases

Agents, Exposures and Prevention

Documentary comparison of 3 diseases; no estimate of individual risk
BenchmarkSyphilisGenital chlamydiaHepatitis B
AgentTreponema pallidumChlamydia trachomatisHepatitis B virus
FamilyBacteriaBacteriaVirus
Paths and contextsSexual use
Mother and child transmission
Sexual use
Mother and child transmission
Blood and fluids
Sexual use
Mother and child transmission
What distinguishes diseaseSexually transmitted infection evolving in several phases and transmissible during pregnancy.Sexually transmitted infection often without symptoms, which can lead to complications of reproductive health; transmission to the newborn is possible at delivery.Infection of the liver transmitted by blood and certain biological fluids, which may become chronic.
PreventionPreservatives, regular exposure testing and early treatment of affected individuals and partners.Preservatives, exposure-specific screening, prescribed treatment and partner management as recommended.Vaccination, sterile equipment, donation testing and precautions when exposed to blood.
DeepeningForm →
WHO — reference
Form →
CDC — référence ↗
Form →
WHO — reference
Diagnosis and monitoringThe professional interprets several tests and previous results. Some antibodies persist after treatment; their positivity is not sufficient to conclude reinfection.Sampling should be consistent with exposed sites. Time frames for post-treatment and re-screening do not answer the same question.Blood tests distinguish different markers of infection and immune response. Their combination interprets with vaccine history and context. A follow-up assessment can assess liver disease and guide follow-up or treatment.
Preparing for an exchange with a professional
  • Dates of contact and injuries
  • Serological results and previous treatments
  • Dates and sites of contacts
  • Previous results and salaries
  • Previous results with date and exact name of markers
  • Evidence of vaccination and exposure to blood

What this table allows to understand

The selected records cover 2 agent family/families. They share the following routes or contexts in our catalogue: Sexual use · Mother and child transmission. These associations describe the selected data; they do not measure contagiousness, severity or personal risk.

To review a comparison, choose one row and open the reference for each column. A preventive measure mentioned in one record and absent from another is not necessarily unnecessary in the second situation: the summaries and their scope may differ.

If symptoms occurThe table does not select any test or treatment. A fever after a stay in the malaria area should be reported promptly, even if prevention has been taken.
Understanding agent, vector and exposure →

Further reading

These publications help you verify the concepts discussed. Disease records and directory entries each identify their sources.

The content modification date does not mean that every source has undergone a new medical review. Verification method and scope.