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
BenchmarkPowassan EncephalitisChikungunyaDengue
AgentVirus PowassanVirus chikungunyaDengue virus
FamilyVirusVirusVirus
Paths and contextsVector
Vector
Vector
What distinguishes diseaseRare arbovirosis transmitted by ticks in North America and likely to cause neurological damage.Arbovirosis transmitted by Aedes mosquitoes, often marked by fever and sometimes prolonged joint pain.Arbovirosis transmitted mainly by Aedes mosquitoes; an infection may be asymptomatic or become severe.
PreventionPrevent tick bites and quickly remove any attached ticks.Disposal of stagnant water and personal protection against stings.Reduce larval gites and protect against stings according to local recommendations.
DeepeningForm →
CDC — référence ↗		Form →
WHO — reference		Form →
WHO — reference
Diagnosis and monitoringConsult with information on tick exposure and evolution. The confirmation is based on specialized medical examinations; a resemblance to Lyme does not mean the same infection.The search for the virus or antibodies depends on the delay from the symptoms. Dengue and Zika can travel in the same areas and look alike.The choice of test depends in particular on when the symptoms started. Direct detection and antibody testing do not answer the same question. The context of stay and the local circulation of arboviruses participate in the interpretation.
Preparing for an exchange with a professional
  • Region and date of exposure
  • Known species or activities in a natural environment
  • Dates and places of residence
  • Fever onset and joint pain
  • Dates and territories of stay
  • Fever onset, evolution and drinking capacity

What this table allows to understand

The selected records cover 1 agent family/families. They share the following routes or contexts in our catalogue: Vector. 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.