Locally Acquired Case of Dengue Virus Reported in California’s Pasadena: Public Health Officials
Pasadena, California – In a concerning development, public health officials have confirmed that the first locally acquired case of dengue virus, also known as “break-bone fever,” has been contracted by a resident in Pasadena, California. This case is unprecedented as it is not associated with travel, marking it as an extremely rare incident of local transmission within the continental United States. The virus is primarily spread through infected mosquito bites.
Manuel Carmona, the acting director of Public Health for the city of Pasadena, stated that this is the first locally transmitted case of dengue virus in California not related to travel. Carmona emphasized that the Pasadena Public Health Department is actively monitoring the situation and has taken immediate steps to prevent the spread of the virus. Teams have visited a Pasadena neighborhood to educate residents on preventing mosquito breeding and avoiding mosquito bites.
Although this appears to be an isolated incident, the Pasadena Health Department remains vigilant and has implemented measures to contain the situation. The San Gabriel Valley Mosquito and Vector Control District has set up traps to assess the local mosquito population. Fortunately, no dengue-infected mosquitoes have been identified so far.
Carmona assured the public that the risk of additional dengue exposure in Pasadena is currently very low. Testing of mosquitoes from additional traps will continue over the next few weeks to further assess the situation and prevent any potential outbreak.
According to the World Health Organization (WHO), most dengue virus cases do not present symptoms. However, around 25% of those infected may experience high fever, headache, body aches, nausea, and a rash for approximately one to two weeks, as indicated by the Centers for Disease Control and Prevention (CDC).
While severe cases leading to fatalities are rare, the WHO estimates that about one in 20 cases develop into extreme dengue virus infections. What makes this particular case in Pasadena even more unusual is that the individual had not traveled recently, raising questions about local transmission sources.
Although dengue virus cases in the United States are rare, with the majority detected in travelers, it is a significant concern worldwide. The WHO states that nearly half of the global population is at risk of dengue, especially those living in tropical and subtropical regions. In 2021, the CDC reported 67 cases of locally acquired dengue virus, with two in Arizona and 65 in Florida.
As the investigation continues, health authorities are urging residents to remain vigilant and take necessary precautions to prevent mosquito bites. People are advised to eliminate standing water around their homes, use mosquito repellents, and wear protective clothing, particularly in areas with high mosquito activity.
In light of this situation, it is crucial for the local community to stay informed and follow the guidance provided by public health officials. Regular updates regarding the investigation and preventive measures will be shared with the public.