Seroprevalence of Heartland Virus Antibodies in Blood Donors Seroprevalence of Heartland Virus Antibodies in Blood Donors

Researchers were able to estimate the seroprevalence of Heartland virus by identifying antibodies in blood specimens obtained from donors.Emerging Infectious Diseases
Source: Medscape Today Headlines - Category: Consumer Health News Tags: Infectious Diseases Journal Article Source Type: news

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Abstract We estimated the seroprevalence of Heartland virus antibodies to be 0.9% (95% CI 0.4%-4.2%) in a convenience sample of blood donors from northwestern Missouri, USA, where human cases and infected ticks have been identified. Although these findings suggest that some past human infections were undetected, the estimated prevalence is low. PMID: 30511916 [PubMed - as supplied by publisher]
Source: Emerging Infectious Diseases - Category: Infectious Diseases Authors: Tags: Emerg Infect Dis Source Type: research
N. P. Lindsey et al.
Source: Emerging Infectious Diseases Journal - Category: Infectious Diseases Source Type: research
Abstract Heartland virus (HRTV) is a North American phlebovirus suspected to be transmitted by the lone star tick Amblyomma americanum. White-tailed deer (WTD) have been shown to develop HRTV-neutralizing antibodies following experimental infection. To further define the geographic distribution of HRTV through retrospective sampling of WTD, sera from the WTD herd health serum archive at the Southeastern Cooperative Wildlife Disease Study between 2001 and 2015 were analyzed using serum neutralization. Of 783 serum samples tested, 57 (7.3%) were positive for HRTV-neutralizing antibodies. Deer with moderate to heavy ...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
n Staples First identified in two Missouri farmers exhibiting low white-blood-cell and platelet counts in 2009, Heartland virus (HRTV) is genetically closely related to severe fever with thrombocytopenia syndrome virus (SFTSV), a tick-borne phlebovirus producing similar symptoms in China, Korea, and Japan. Field isolations of HRTV from several life stages of unfed, host-seeking Amblyomma americanum, the lone star tick, implicated it as a putative vector capable of transstadial transmission. Laboratory vector competence assessments confirmed transstadial transmission of HRTV, demonstrated vertical infection, and showed ...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
AbstractPurpose of ReviewThis review highlights some of the recent concerning emerging infectious diseases, a number of them specifically that the World Health Organization has categorized as priorities for research.Recent FindingsEmerging and reemerging infectious diseases account for significant losses in not only human life, but also financially. There are a number of contributing factors, most commonly surrounding human behavior, that lead to disease emergence. Zoonoses are the most common type of infection, specifically from viral pathogens. The most recent emerging diseases in the USA areEmergomyces canadensis, the H...
Source: Current Emergency and Hospital Medicine Reports - Category: Emergency Medicine Source Type: research
Viruses, Vol. 10, Pages 362: Tick–Virus–Host Interactions at the Cutaneous Interface: The Nidus of Flavivirus Transmission Viruses doi: 10.3390/v10070362 Authors: Meghan E. Hermance Saravanan Thangamani Tick-borne viral diseases continue to emerge in the United States, as clearly evident from the increase in Powassan encephalitis virus, Heartland virus, and Bourbon virus infections. Tick-borne flaviviruses (TBFVs) are transmitted to the mammalian host along with the infected tick saliva during blood-feeding. Successful tick feeding is facilitated by a complex repertoire of pharmacologically active sal...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
AbstractPurpose of ReviewThis review highlights some of the recent concerning emerging infectious diseases, a number of them specifically that the World Health Organization has categorized as priorities for research.Recent FindingsEmerging and reemerging infectious diseases account for significant losses in not only human life, but also financially. There are a number of contributing factors, most commonly surrounding human behavior, that lead to disease emergence. Zoonoses are the most common type of infection, specifically from viral pathogens. The most recent emerging diseases in the USA areEmergomyces canadensis, the H...
Source: Current Emergency and Hospital Medicine Reports - Category: Emergency Medicine Source Type: research
Abstract Powassan virus (POWV) is a tick-borne zoonosis maintained in natural enzootic cycles between ixodid ticks and wild mammals. Reported human cases have increased in recent years; these infections can be fatal or lead to long-term neurologic sequelae. However, both the geographic distribution and the role of common, potential mammalian hosts in POWV transmission are poorly understood, creating challenges to public health surveillance. We looked for evidence of POWV infection among candidate wildlife host species and ticks collected from mammals and birds in southern Ontario. Tissues (including blood) and tic...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
For most of us, springtime marks the return of life to a dreary landscape, bringing birdsong, trees in bud, and daffodils in bloom. But if you work for the Centers for Disease Control and Prevention (CDC), the coming of spring means the return of nasty diseases spread by ticks and mosquitoes. The killjoys at CDC celebrated the end of winter with a bummer of a paper showing that infections spread by ticks doubled in the United States from 2004 to 2016. (Tick populations have exploded in recent decades, perhaps due to climate change and loss of biodiversity.) Lyme disease The most common infection spread by ticks in the US i...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Health Infectious diseases Source Type: blogs
In the United States, diseases spread by mosquito, flea and tick bites tripled from 2004 to 2016, federal health officials say in a new report. During that time, there were more than 640,000 cases of vector-borne diseases. “People really do need to take this seriously,” says Dr. Lyle Petersen, the director of the Division of Vector-Borne Diseases in the National Center for Emerging and Zoonotic Infectious Diseases at the Centers for Disease Control and Prevention (CDC). The new study—published in the CDC’s Morbidity and Mortality Weekly Report—marks the first time the agency has collectively e...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized healthytime public health Source Type: news
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