TWiP solves the case of the 19 month old Female Having Issues, and discusses the finding that selection for insecticide resistance can promote Plasmodium falciparum infection in Anopheles mosquitoes.

Hosts: Vincent Racaniello, Dickson Despommier, Daniel Griffin, and Christina Naula

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Links for this episode

• Insecticide resistance in mosquitoes promotes Plasmodium infection (PLoS Path)
• Letters read on TWiP 219

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Case Study for TWiP 220

73 y/o M w/ no significant PMhs who is referred to ED for fever, lethargy and progressive weakness as for the past 2 weeks. Thursday of the prior week he went to his PCP and blood work was performed. CBC demonstrated RBC inclusions. Labs also demonstrated anemia, thrombocytopenia, mildly elevated total bili and ALT. He was started on PO azithromycin and atovaquone on Saturday, however, he has not noted much improvement. He was seen in our office Monday and reports intermittent fever to 102, continued chills . Additional symptoms include dark urine, chills, occasional diaphoresis. Normally patient rides his bike 15 miles a day and runs 3 miles per day but states now he barely has the energy to walk a few feet and is now in a wheelchair. He report that he regular goes for Runs in parks in Queens.

He denies any bug bites, tick bites, rashes, blood transfusions in the past year.

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Music by Ronald Jenkees