Publications by authors named "Amberjean P Hansen"

Article Synopsis
  • A global outbreak of clade II mpox has been primarily affecting gay, bisexual, and other men who have sex with men (MSM) since May 2022, with limited understanding of transmission routes.
  • A study analyzed 457 case-patients and 1,030 control patients (aged 18-49) to estimate the odds of mpox transmission based on different types of close contact; results showed that those engaging in condomless receptive anal sex had a 5.4 times higher odds of contracting mpox.
  • Despite the effectiveness of the mpox vaccine, vaccination rates are low, highlighting the need for a comprehensive prevention strategy that includes vaccination promotion and safer sex practices.
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Article Synopsis
  • - The study aimed to identify barriers that prevent people from consistently using four common tickborne disease (TBD) prevention measures, including tick checks, insect repellent application, showering after outdoor activities, and pesticide use in yards.
  • - An online survey with 1883 respondents from high Lyme disease areas in Connecticut and Maryland revealed that forgetting and concerns about safety or convenience were the most common reasons for not following these prevention measures.
  • - Key findings showed that many people were unaware of specific measures, found them too troublesome, or were concerned about the safety of chemicals for themselves, pets, and the environment, highlighting the need for better public health messaging.
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Context: In the northeastern United States, recommendations to prevent diseases spread by black-legged ticks ( Ixodes scapularis ) and lone star ticks ( Amblyomma americanum ) often rely on individuals to use personal protection or yard-based strategies. The 4-Poster deer treatment stations (4-Posters) suppress tick populations by treating deer hosts with acaricide, potentially offering a community-wide approach for reducing tick-borne diseases in endemic areas. The 4-Poster deployment logistics in mainland community settings are not well documented but are needed for future public health tick control efforts.

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The 4-Poster Tick Control Deer Feeder (4-poster) device applies acaricide to white-tailed deer (Odocoileus virginianus) and can reduce populations of the blacklegged tick (Ixodes scapularis), which transmits the agents of Lyme disease, anaplasmosis, babesiosis, and Powassan virus disease in the Northeastern United States. While 4-poster devices have the potential to provide community-wide management of blacklegged ticks in Lyme disease endemic areas, no recent study has assessed their acceptability among residents. We conducted a survey of residents from 16 counties with high annual average Lyme disease incidence (≥ 10 cases per 100,000 persons between 2013 and 2017) in Connecticut and New York to understand perceptions and experiences related to tickborne diseases, support or concerns for placement of 4-poster devices in their community, and opinions on which entities should be responsible for tick control on private properties.

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Article Synopsis
  • Over 30,000 monkeypox cases were reported in the U.S. by March 31, 2023, with the outbreak mainly affecting gay, bisexual, and transgender individuals.
  • The FDA approved the JYNNEOS vaccine in 2019 for smallpox and monkeypox prevention, and in August 2022, allowed a new injection method to increase vaccine access.
  • A study showed that JYNNEOS vaccine effectiveness was 75.2% for partial vaccination and 85.9% for full vaccination among men who have sex with men and transgender individuals aged 18-49.
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Approximately 476,000 cases of Lyme disease are diagnosed in the United States annually, yet comprehensive economic evaluations are lacking. In a prospective study among reported cases in Lyme disease-endemic states, we estimated the total patient cost and total societal cost of the disease. In addition, we evaluated disease and demographic factors associated with total societal cost.

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Blacklegged ticks, Ixodes scapularis Say, transmit Lyme disease spirochetes and other human pathogens in the eastern United States. White-tailed deer (Odocoileus virginianus) are key reproductive hosts for I. scapularis adults, and therefore control methods targeting deer have the potential for landscape-wide tick suppression.

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Article Synopsis
  • Lyme disease cases are rising, prompting the development of new vaccine candidates, but understanding public acceptance is crucial before market release.
  • A survey conducted in June-July 2018 across several states found that 64% of respondents were willing to get vaccinated, while 30% were uncertain, and 7% were unwilling.
  • Factors influencing vaccine hesitancy included being non-White, having less education, safety concerns, low confidence in vaccines, and a low perceived risk of Lyme disease.
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Synopsis of recent research by authors named "Amberjean P Hansen"

  • - AmberJean P Hansen's research primarily focuses on public health concerns related to tick-borne diseases and emerging infectious diseases such as mpox, emphasizing the interactions between human behavior, disease transmission, and preventive measures.
  • - Findings from her studies on mpox highlight the significant role of intimate contact among men who have sex with men and transgender individuals in disease transmission, alongside evaluating the effectiveness of the JYNNEOS vaccine.
  • - Hansen's work on tick-borne diseases includes exploring community perceptions of innovative intervention strategies, such as the use of 4-poster tick control devices, and identifying barriers to the uptake of prevention measures in high-incidence areas of Lyme disease.