All articles tagged with #local transmission
Maricopa County Public Health confirms two more measles cases (one with no known exposure), indicating local transmission and adding three public exposure sites. Health officials urge vaccination with the MMR vaccine, watching for symptoms, and seeking prompt medical care if exposed or symptomatic, noting measles’ high contagiousness and potential complications.
New York has confirmed its first locally acquired case of chikungunya virus in six years, detected in Nassau County, though there is no evidence of ongoing transmission. The virus, spread by mosquitoes, is rare in the U.S., with most cases linked to international travel. The current risk of spread is very low due to cooler fall temperatures, and the disease typically causes mild symptoms, though vulnerable populations are at higher risk.
A potential case of locally acquired malaria in Morris County, New Jersey, has prompted health officials to test local mosquitoes, marking possibly the first such instance in decades, as authorities work to identify the source and advise residents on prevention measures.
Two cases of dengue fever have been confirmed in Southern California, marking rare instances of local transmission in the continental United States. The infected individuals did not travel outside the country, suggesting that they were bitten by mosquitoes carrying the virus within the US. Dengue fever, caused by infected Aedes mosquitoes, is common in tropical areas and can lead to high fevers, headaches, and in severe cases, internal bleeding. While dengue is rare in the US, efforts to combat the infection are increasing worldwide.
Health officials in California have confirmed two cases of dengue fever, a mosquito-borne illness, in individuals who did not travel outside the United States. This is an extremely rare occurrence of local transmission in the continental US. The cases, one in Pasadena and another in Long Beach, are under investigation, but it is believed that the individuals were infected with the dengue virus after being bitten by mosquitoes in their local areas. Dengue fever is common in tropical regions and can cause high fevers, headaches, muscle pain, and in severe cases, internal bleeding. The risk of exposure to others is considered low.
Two cases of dengue fever, a mosquito-borne illness, have been reported in California, with both individuals claiming they haven't traveled outside the United States. This is an extremely rare occurrence of local transmission within the continental U.S. Symptoms of dengue fever include severe abdominal pain, persistent vomiting, and in severe cases, internal bleeding leading to death. Dengue is common in tropical areas and affects about half the world's population, causing millions of infections and thousands of deaths each year. The most dangerous aspect of dengue fever is the risk of reinfection, with symptoms often worsening the second time around. Health officials advise seeking medical attention immediately if experiencing symptoms, especially for those who have had dengue fever before.
Two cases of dengue fever have been confirmed in Southern California, marking rare instances of local transmission in the United States. The infected individuals did not travel outside the country, suggesting that they were bitten by mosquitoes carrying the virus within the continental US. Dengue fever, caused by infected Aedes mosquitoes, is common in tropical areas and can lead to high fevers, headaches, nausea, and in severe cases, internal bleeding. While dengue is rare in the US, efforts to combat the infection are increasing as the global infection rate rises.
The CDC has discovered evidence of a unique strain of cutaneous leishmaniasis in U.S. residents with no travel history, indicating local transmission of the disease by domestic sandflies. This raises concerns that the more severe visceral leishmaniasis could establish in U.S. sandflies through imported dogs carrying the pathogen. Genetic analysis revealed a distinct genetic fingerprint of the disease in non-travelers, suggesting a locally derived strain. Cutaneous leishmaniasis can cause disfiguring scars and is mainly found in low-income countries. The CDC hopes that by identifying the emergence of locally acquired cases, it will be easier to detect the disease in new areas. Additionally, there is growing concern that imported dogs could introduce the life-threatening visceral leishmaniasis to domestic sandfly populations.
An "extremely rare" case of locally acquired dengue, a mosquito-borne illness, has been reported in Pasadena, California, marking the first instance in the state not associated with international travel. Dengue is typically found in tropical and sub-tropical climates and is common in many Caribbean tourist destinations. The origin of the virus in California is still unknown. Health officials are conducting surveillance and advising residents to take preventive measures against mosquito-borne illnesses. While the risk of exposure is low, dengue can cause severe symptoms in some cases, including internal bleeding and death.
The first locally acquired case of dengue virus, also known as "break-bone fever," has been reported in Pasadena, California. This is an extremely rare case of local transmission in the continental United States, not associated with travel. Public health officials are conducting surveillance and taking preventive measures to control the spread of the virus, including mosquito population assessment and testing. While most cases of dengue virus are asymptomatic or cause mild symptoms, extreme cases can be fatal. The virus is rare in the U.S., with most cases found in travelers, but about half of the world's population is at risk of dengue, particularly in tropical and subtropical climates.
The Pasadena Public Health Department has confirmed a rare case of locally-acquired dengue in a resident, marking the first instance of the illness in California not associated with travel. While the risk of exposure to dengue for residents is low, the public health department advises taking standard precautions to reduce mosquito populations and the risk of mosquito-borne diseases. Symptoms of dengue include fever, nausea, vomiting, rash, and body aches, and there are currently no specific medicines or vaccines to prevent the disease. The San Gabriel Valley Mosquito and Vector Control District has deployed traps to assess the mosquito population in the area.
A Maryland resident in the D.C. area has been diagnosed with malaria despite not having recently traveled abroad or to states where malaria is prevalent. This "locally acquired" case is the first in Maryland in over 40 years. Health officials are taking the case seriously and will investigate. The patient may have contracted malaria from a mosquito that previously bit someone who had traveled. Malaria, a mosquito-borne disease caused by a parasite, was originally eliminated from the U.S. in the early 2000s but is still treated by doctors due to travelers returning with the parasite. The risk of acquiring mosquito-transmitted malaria remains low, but precautions such as using insect repellent and wearing protective clothing are recommended.
An outbreak of locally transmitted malaria cases has occurred in Sarasota County, Florida, with eight people contracting the disease after being bitten by local mosquitoes. This marks the first locally transmitted outbreak in the US in 20 years. The cases have prompted mosquito control teams to increase efforts in suppressing the population of Anopheles mosquitoes, which carry malaria. Symptoms of malaria include fever, body aches, headaches, nausea, vomiting, and diarrhea. Health officials are urging residents to use insect repellent and wear protective clothing to prevent mosquito bites.
The first locally acquired dengue virus (DENV) infection in the continental United States was identified in a Maricopa County, Arizona resident who had recently traveled to Mexicali, Mexico. Retrospective testing of mosquito pools located within 5 miles of the patient's residence revealed one positive for DENV. Coordinated surveillance and response activities identified a total of two autochthonous DENV infections in the area. The outbreak ended on January 4, 2023, after >45 days without additional locally acquired cases. Public health officials are enhancing future surveillance activities to identify and prevent autochthonous DENV transmission.