50,798 research outputs found
Is the United States Prepared for a Major Zika Virus Outbreak?
Zika virus has emerged as a global public health crisis with active transmission in the Americas and Caribbean. The World Health Organization (WHO) declared a Public Health Emergency of International Concern (PHEIC), and recently WHO reported there is a scientific consensus that Zika is a cause of microcephaly and Guillain-Barré syndrome (GBS). In the U.S. the Centers for Disease Control and Prevention (CDC) activated its emergency operations center at its highest capacity. President Obama requested $1.86 billion in emergency funding. Shamefully, Congress has yet to appropriate the funding needed for Zika preparedness, and the President has had to reallocate Ebola funding for Zika prevention.
Although none of the continental states has reported local mosquito-borne transmission, federal authorities are amplifying the potential for Zika to affect national security. The virus already severely threatens Puerto Rico. Travelers visiting or returning to the United States could likely escalate the spread of Zika via sexual transmission. The virus may spread across a majority of US states including large cities where Aedes species mosquitos are active. Is the U.S. prepared for Zika? America\u27s highly functioning health system will help, but signs of unpreparedness remain due to insufficient resources and variable legal authorities
Zika virus infection in the returning traveller: what every neurologist should know
Zika virus has been associated with a wide range of neurological complications. Neurologists in areas without current active transmission of the virus may be confronted with Zika-associated neurological disease, as a large number of returning travellers with Zika virus infection have been reported and the virus continues to spread to previously unaffected regions. This review provides an overview of Zika virus-associated neurological disease and aims to support neurologists who may encounter patients returning from endemic areas
Anti-ganglioside antibodies in patients with Zika virus infection-associated Guillain-Barré Syndrome in Brazil.
Zika virus infection is associated with the development of Guillain-Barré syndrome (GBS), a neurological autoimmune disorder caused by immune recognition of gangliosides and other components at nerve membranes. Using a high-throughput ELISA, we have analyzed the anti-glycolipid antibody profile, including gangliosides, of plasma samples from patients with Zika infections associated or not with GBS in Salvador, Brazil. We have observed that Zika patients that develop GBS present higher levels of anti-ganglioside antibodies when compared to Zika patients without GBS. We also observed that a broad repertoire of gangliosides was targeted by both IgM and IgG anti-self antibodies in these patients. Since Zika virus infects neurons, which contain membrane gangliosides, antigen presentation of these infected cells may trigger the observed autoimmune anti-ganglioside antibodies suggesting direct infection-induced autoantibodies as a cause leading to GBS development. Collectively, our results establish a link between anti-ganglioside antibodies and Zika-associated GBS in patients
Zika Virus and Global Health Security
Americans are largely apathetic about the risks of Zika virus and Congress cannot agree on preparedness funding. Strategies to counter the spread of Zika by the World Health Organisation (WHO) grossly underestimate the disease’s impact. WHO and member countries lack sufficient resources to respond. Consequences of fiscal apathy can be measured in lives lost and long-term disabilities. Zika prevention is a matter of global health security.
The epidemiologic brunt of Zika in South America falls largely on vulnerable women at heightened risk of exposure through mosquitoes and sexual transmission. Resulting transmission to fetuses and infants will have generational impacts in South American and Caribbean countries, as well as the U.S. Global costs to address Zika infections among infected infants will exceed hundreds of billions (U.S. dollars).
WHO and some U.S. leaders, including President Obama, correctly assert that Zika threatens national and global security similar to humanitarian crises, climate change, and war. Words alone, however, are not enough. Global recognition of this public health crisis must stimulate greater investment in preventing negative repercussions
The Emerging Zika Pandemic: Enhancing Preparedness
The Zika virus (ZIKV), a flavivirus related to yellow fever, dengue, West Nile, and Japanese encephalitis, originated in the Zika forest in Uganda and was discovered in a rhesus monkey in 1947. The disease now has “explosive” pandemic potential, with outbreaks in Africa, Southeast Asia, the Pacific Islands, and the Americas. Since Brazil reported Zika virus in May 2015, infections have occurred in at least 20 countries in the Americas. Puerto Rico reported the first locally transmitted infection in December 2015, but Zika is likely to spread to the United States. The Aedes species mosquito (an aggressive daytime biter) that transmits Zika virus (as well as dengue, chikungunya, and yellow fever) occurs worldwide, posing a high risk for global transmission. Modeling anticipates significant international spread by travelers from Brazil to the rest of the Americas, Europe, and Asia. What steps are required now to shore up preparedness in the Americas and worldwide
The Zika Virus Threat: How Concerns About Scientists May Undermine Efforts to Combat the Pandemic
Using data from the University of New Hampshire’s October 2016 Granite State Poll, authors Thomas Safford, Lawrence Hamilton, and Emily Whitmore investigate how New Hampshire residents view the Zika crisis. They report that most New Hampshire residents believe Zika is only a minor threat to public health in the United States, and they generally trust the CDC as a source of information about the virus. The data also show that, while there is doubt about the government’s ability to control the spread of the virus, the public feels that emergency federal funding to combat Zika should be a priority. They discuss that many Granite Staters have real concerns about the practice of science, believing scientists change their findings to get the answers they want. More importantly, individuals who questioned the integrity of scientists are less likely to believe Zika is a threat, have confidence in the government’s ability to combat the virus, trust the CDC, and to prioritize emergency funding. They conclude that these results suggest that health officials working to engage the public in efforts to control the spread of Zika must not only discuss risks associated with the virus and mechanisms of transmission, but also confront science skepticism and potential concerns about the integrity of the scientists gathering data related to Zika and other infectious diseases
Examining Zika Virus: Transmission, Diagnosis, Treatment, and Prevention
The Zika virus is a mosquito-borne virus that was first isolated in Uganda in 1947 and has since caused outbreaks in many parts of the world. It has multiple routes of transmission and may cause acute illness and death if not treated. The Zika virus becomes a major concern if transmitted from mother to fetus as it increases the chance of birth defects and developmental problems to the unborn baby. This article highlights the importance of early diagnosis and describes Zika virus’ transmission, treatment, and prevention
Travel-Associated Zika Virus Disease Acquired in the Americas Through February 2016
BACKGROUND: Zika virus has spread rapidly in the Americas and has been imported into many nonendemic countries by travelers.
OBJECTIVE: To describe clinical manifestations and epidemiology of Zika virus disease in travelers exposed in the Americas.
DESIGN: Descriptive, using GeoSentinel records. SETTING: 63 travel and tropical medicine clinics in 30 countries.
PATIENTS: Ill returned travelers with a confirmed, probable, or clinically suspected diagnosis of Zika virus disease seen between January 2013 and 29 February 2016.
MEASUREMENTS: Frequencies of demographic, trip, and clinical characteristics and complications.
RESULTS: Starting in May 2015, 93 cases of Zika virus disease were reported. Common symptoms included exanthema (88%), fever (76%), and arthralgia (72%). Fifty-nine percent of patients were exposed in South America; 71% were diagnosed in Europe. Case status was established most commonly by polymerase chain reaction (PCR) testing of blood and less often by PCR testing of other body fluids or serology and plaque-reduction neutralization testing. Two patients developed Guillain–Barre syndrome, and 3 of 4 pregnancies had adverse outcomes (microcephaly, major fetal neurologic abnormalities, and intrauterine fetal death).
LIMITATION: Surveillance data collected by specialized clinics may not be representative of all ill returned travelers, and denominator data are unavailable.
CONCLUSION: These surveillance data help characterize the clinical manifestations and adverse outcomes of Zika virus disease among travelers infected in the Americas and show a need for global standardization of diagnostic testing. The serious fetal complications observed in this study highlight the importance of travel advisories and prevention measures for pregnant women and their partners. Travelers are sentinels for global Zika virus circulation and may facilitate further transmission
Interferon lambda protects the female reproductive tract against Zika virus infection
Zika virus infections can cause devastating congenital birth defects but the underlying interactions with the host immune system are not well understood. Here, the authors examine the immune basis of vaginal protection and susceptibility to Zika viral infection, and identify a hormonal dependent role for interferon-lambda-mediated protection against disease
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The Impact of the Zika Epidemic on Women’s Reproductive Intentions and Behaviors in Brazil
This research brief reports on a focus group study that explores how and why the Zika virus affects reproductive processes in Brazil. The authors found that both reproductive intentions and behaviors changed as a result of the Zika epidemic among women from low and high socioeconomic status groups in two areas of Brazil. The authors argue that Brazilian health officials and policymakers should reduce barriers to contraceptive use, address longstanding disparities in reproductive health services that put low-income women at disproportionate risk of an unwanted pregnancy, legalize abortion, and show respect and support to women who actively pursue pregnancy during the Zika epidemic.Population Research Cente
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