“We have seen a particular serotype getting going dormant for a year and then resurfacing. The break helps the particular serotype evolve and infect again,” NICD official said.
Dengue strains:
* Dengue I: Classic dengue fever; high fever, pain in joints
* Dengue II: Dengue haemorrhagic fever with shock, spontaneous bleeding of skin and gums
* Dengue III: Dengue haemorrhagic fever without shock; circulatory failure, agitation
* Dengue IV: Dengue haemorrhagic fever; profound shock (unrecordable blood pressure).
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