title: Case definitions for the 4 diseases requiring notification to WHO in all circumstances under the IHR (2005).
mesh_terms: D018563:Disease Notification / Q000592:standards*; D006801:Humans; D009980:Influenza A virus; D007251:Influenza, Human / Q000517:prevention & control* / Q000821:virology; D007391:International Cooperation; D011051:Poliomyelitis / Q000517:prevention & control* / Q000821:virology; D017955:Poliovirus; D045473:Severe acute respiratory syndrome-related coronavirus; D045169:Severe Acute Respiratory Syndrome / Q000517:prevention & control* / Q000821:virology; D012899:Smallpox / Q000517:prevention & control*; D014944:World Health Organization