A patient with fever, rash, and meningoencephalitis is admitted to the hospital, placed in Droplet...

West Nile virus (WNV) is a mosquito-borne infection. In routine healthcare and household settings, WNV is not spread through coughing, sneezing, or touching and is not transmitted by casual person-to-person contact. Because Transmission-Based Precautions (e.g., Droplet) are used when there is evidence or strong concern for transmission via droplet/contact/airborne routes, WNV suspicion does not justify continuing Droplet Precautions once other droplet-spread causes are no longer suspected.

CDC isolation guidance principles indicate that when there is no evidence for person-to-person transmission by droplet, contact, or airborne routes, Standard Precautions are appropriate. Therefore, the correct action is to discontinue Droplet Precautions and manage the patient using Standard Precautions (hand hygiene and appropriate PPE based on anticipated exposure to blood/body fluids).

The other options are not indicated: immunoglobulin for family members is not a standard infection control measure for WNV, quarantining a pet parakeet is irrelevant to WNV transmission, and “continuing present measures” would unnecessarily maintain Droplet Precautions without a transmission-based indication.