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LDH confirms first human West Nile virus case of 2026 mosquito season
LDH has confirmed Louisiana’s first human case of West Nile virus (WNV) of the 2026 mosquito season and is urging residents to protect themselves from mosquito bites.
LDH News
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LDH confirms measles case in Region 1
The patient, who was exposed to measles during international travel, is in isolation and is receiving treatment at a Region 1 hospital.
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Louisiana Department of Health confirms measles case in Region 9
The individual was not hospitalized and will remain in isolation until no longer infectious. This patient’s vaccination status is unknown.
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Louisiana Department of Health continues to urge caution to prevent Vibrio vulnificus infection
Vibrio bacteria can cause illness when an open wound is exposed to coastal waters or when a person eats raw or undercooked seafood, particularly oysters.
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LDH confirms first human West Nile virus case of 2025 mosquito season
This case was confirmed in an individual from Livingston Parish who was hospitalized due to complications from the infection.
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LDH reminds residents to protect against West Nile virus
Mosquito activity increases during the warmer summer months, which raises the risk of mosquito-borne diseases.
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LDH concludes measles investigation, updates whooping cough cases in Louisiana
The Louisiana Department of Health today announced encouraging news regarding measles in the state, with no new infections identified following two recently reported cases. However, LDH continues to monitor a concerning trend of increasing whooping cough (pertussis) cases across Louisiana.
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Whooping cough cases remain high across Louisiana
The significant spread of whooping cough is leading to a corresponding increase in reported hospitalizations and deaths.
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Louisiana Department of Health confirms Greater New Orleans area measles case
This is the first measles case reported in Louisiana in 2025.
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LDH reports first U.S. H5N1-related human death
The patient was over the age of 65 and was reported to have underlying medical conditions.
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LDH detects first presumptive positive human H5N1 case in Louisiana
While the current public health risk for the general public is low, people who work with birds, poultry or cows, or have recreational exposure to them, are at higher risk.
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LDH launches congenital syphilis prevention pilot to increase screening opportunities during pregnancy
Screening for syphilis in pregnant women and treating it promptly when it is diagnosed is a critical strategy in preventing syphilis from being passed to newborns.