The National Weather Service has issued an Extreme Heat Warning for 7 counties . Coconino County (lower elevations of the Grand Canyon) will be affected through July 1. Graham, Greenlee, Pima, Pinal, and Gila Counties will be affected through June 30. Maricopa County will be affected June 29-July 1. Daytime highs up to 116°F are expected. Public cooling centers are available in some areas. Stay cool, stay hydrated, and stay informed.

The Centers for Disease Control and Prevention (CDC) has issued the following health advisories for vector-borne diseases:

The CDC recommends that pregnant travelers discuss travel plans, reasons for travel, steps to prevent bug bites, and potential risks with their healthcare provider.

What to do if you're a member of the public:
What to do if you're a health care provider:
  • Have increased suspicion of dengue and Oropouche virus infection for people with fever who have been in areas with dengue or Oropouche virus transmission within 14 days before illness onset.
  • Advise patients who plan to travel to take steps to prevent mosquito bites during travel and for 3 weeks after returning, especially if traveling to an area with frequent or continuous dengue or Oropouche virus transmission.
  • If Oropouche virus infection is suspected, contact your local health department to consider testing at the CDC (specific criteria for testing are here and include a negative dengue test result).
  • If dengue is suspected, order the following diagnostic tests based on the timing of sample collection:
    • For zero to seven days from onset, test serum using PCR and IgM, or NS1 antigen and IgM.
    • For more than seven days from onset, test serum using IgM.