Transmission Current Events

Transmission Current Events, Transmission News Articles.
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Anti-viral treatment during pregnancy reduces HBV transmission from mother to child
An analysis of published studies indicates that the antiviral drug tenofovir given to pregnant women in the second or third trimester can help prevent mother to child transmission of the hepatitis B virus (HBV). (2017-04-24)

Preventing HIV infection in newborns
Although all pregnant women in Canada are supposed to be offered voluntary HIV testing to allow treatment and possible prevention of transmission to the baby, cases are still missed. (2002-04-01)

Better understanding of the HIV epidemic through an evolutionary perspective
With the abundance of sequencing data, scientists can use ever more powerful evolutionary biology tools to pinpoint the transmission and death rates for epidemics such as HIV, which has remained elusive to a cure. Professor Gabriel Leventhal, et. al., from the ETH Zurich in Switzerland report on a new method that successfully combines evolutionary tree studies and epidemiology, using viral sequence data from 10 transmission clusters of the Swiss HIV Cohort Study. (2013-10-08)

Combination therapies may be almost as effective as treated bednets in preventing malaria
Artemisinin-combination therapies could be almost as effective in reducing transmission of malaria as insecticide-treated bednets in areas of low transmission, a study based on data from Tanzania has found. In high transmission areas, long-acting antimalarial regimens may be needed to achieve significant transmission reductions. (2008-11-24)

To avoid impression that SARS-CoV-2 transmission is ever-changing, interpret new info using existing
The global spread of SARS-CoV-2 has taken a variety of forms, ranging from localized and quickly controlled outbreaks to large, ongoing epidemics with deadly consequences. (2020-10-22)

Criminalising HIV transmission may lead to a rise in new HIV infections
Researchers in this week's BMJ warn of a one third increase in new sexually transmitted HIV infections in Scotland as a result of the Glenochil judgement, which made knowingly transmitting HIV a criminal offence in Scotland. (2001-11-15)

Snakes poisoned at birth
Scientists in Germany have found that a significant route of transmission of Salmonella in non egg-laying snakes is from the mother to the offspring during pregnancy and birth. (2006-02-22)

Plotting the elimination of dengue
Researchers at the University of Melbourne along with international collaborators are using a novel way to block the dengue virus in Aedes aegypti mosquitoes using the insect bacterium, Wolbachia and have for the first time provided projections of its public health benefit. (2015-04-08)

SFU researchers examine which approaches are most effective at reducing COVID-19 spread
Simon Fraser University professors Paul Tupper and Caroline Colijn have found that physical distancing is universally effective at reducing the spread of COVID-19, while social bubbles and masks are more situation-dependent. The researchers developed a model to test the effectiveness of measures such as physical distancing, masks or social bubbles when used in various settings. (2020-11-20)

The HIV-infected health care worker and patient safety
The balance between patient protection and health care workers' rights is one theme that emerges from Irving Salit and coauthors' review of the evidence for risk of HIV transmission from health care workers, particularly dentists, to patients. (2001-06-11)

How kissing as a risk factor may explain the high global incidence of gonorrhoea
In 2016, there were 87 million people diagnosed with gonorrhoea, the most antibiotic resistant of all the STIs. There is a global rise in gonorrhoea rates and, until now, no one has understood why. (2019-07-17)

Transmission congestion threatens to clog nation's power grid
Inadequate investment in the power grid transmission network remains the Achilles heel of the nation's electric system, an engineer who specializes in utility policy at the University of Illinois at Urbana-Champaign says. (2006-07-27)

Data-based COVID-19 transmission model suggests social distancing worked in Wuhan and Shanghai
A new COVID-19 transmission model, based on contact survey data from nearly 1200 people in the cities of Wuhan and Shanghai, China, suggests that strict social distancing measures implemented there were sufficient to curtail the transmission of SARS-CoV-2, the virus responsible for the COVID-19 pandemic. (2020-04-29)

Household transmission of SARS: Lessons learned
A retrospective cohort of SARS-affected households was studied to determine risk factors for household transmission of SARS. (2006-11-06)

Targeting tuberculosis 'hotspots' could have widespread benefit
Reducing tuberculosis transmission in geographic (2012-05-28)

HIV transmission networks mapped to reduce infection rate
Researchers at the University of California, San Diego School of Medicine have mapped the transmission network of human immunodeficiency virus (HIV) in San Diego. The mapping of HIV infections, which used genetic sequencing, allowed researchers to predictively model the likelihood of new HIV transmissions and identify persons at greatest risk for transmitting the virus. (2014-06-05)

Europe becoming complacent over HIV prevention
Rising levels of gonorrhoea and syphilis across western Europe since 1995 imply that complacency over HIV prevention efforts may have set in among individuals and some governments, argue researchers in this week's BMJ. (2002-05-30)

Tracing the lineages of the mammalian gut community
The unique compositions of bacteria residing in the guts of mice are inherited from parents and remain more or less the same over many generations, according to a new study. (2018-10-25)

Study in bats and rodents offers insights on how viruses spread across species
Bats are natural reservoirs of several important emerging viruses, and because cross-species transmission appears to be quite common among bats, it's important to study bats in a community context rather than concentrating on individual species. (2015-08-25)

High-fidelity quantum secret sharing prevents eavesdropping
Eavesdropping is of concern for secrets shared using quantum scale messengers. A quantum secret is akin to an unknown quantum state of two entangled particles carrying the secret. In a new study published in EPJ D, Chen-Ming Bai from Shaanxi Normal University, Xi'an, China, and colleagues calculate the degree of fidelity of the quantum secret once transmitted and explore how to avoid eavesdropping. (2018-07-11)

Tackling airborne transmission of COVID-19 indoors
Preventing airborne transmission of Covid-19 should be the next front of the battle against the virus, argue experts from the University of Surrey. (2020-05-28)

Study of international cystic fibrosis centers highlights spread of aggressive bacteria
A bacterium damaging to the lungs and once thought to be acquired from the environment is actually spread -- at least in cystic fibrosis clinics -- through human transmission, a new study reveals. (2016-11-10)

Protein discovery fuels redesign of mosquito-based malaria vaccine
A promising type of vaccine designed to eradicate malaria by blocking parasite transmission could be a step closer, as a result of experts uncovering new information about the targeted protein. (2015-06-16)

Biological factors predict which viruses will cause human epidemics
The identification of biological factors that predict which viruses are most likely to spread among humans could help prevent and contain outbreaks, a study in today's Proceedings of the National Academy of Sciences reports. (2016-03-21)

*Ring, Ring* 'Earth? It's space calling, on the quantum line'
In a landmark study, Chinese scientists report the successful transmission of entangled photons between suborbital space and Earth. (2017-06-15)

First cases of COVID-19 in New York City primarily from European and US sources
In New York City, the first confirmed COVID-19 cases arose mostly through untracked transmission of the virus from Europe and other parts of the United States, a new molecular epidemiology study of 84 patients reports. (2020-05-29)

Intermittent prophylaxis prevents malaria in infants
Giving infants preventive treatment for malaria can reduce malaria and anaemia even in seasonal, high transmission areas such as Ghana, finds a study in this week's BMJ. (2005-09-29)

A mass dog vaccination campaign stops rabies transmission in its tracks
Mass dog vaccination campaigns in an African city successfully interrupted rabies transmission for nine months during 2014, researchers report. (2017-12-20)

Placental malaria increases mother-to-child HIV transmission
A study by the Johns Hopkins Bloomberg School of Public Health found that placental malaria infection during pregnancy significantly increases the risk of mother-to-child transmission of HIV. Mother-to-child HIV transmission rates were 40 percent among women with placental malaria compared to 15.4 percent for women without malaria. The researchers believe that interventions to prevent malaria during pregnancy could potentially reduce mother-to-child transmission of HIV. (2003-11-05)

Cell-associated HIV mucosal transmission: The neglected pathway
Dr. Deborah Anderson from Boston University School of Medicine and her colleagues are challenging dogma about the transmission of the human immunodeficiency virus type 1 (HIV-1). Most research has focused on infection by free viral particles, while this group proposes that HIV is also transmitted by infected cells. (2014-12-18)

Antiretrovirals reduce mother-to-child HIV-1 transmission when started after childbirth
Results of a study from Malawi in this week's issue of The Lancet highlight how antiretroviral therapy targeted at babies soon after childbirth (because their mothers' HIV diagnosis was made around the time of delivery) is still effective in preventing vertical HIV-1 transmission from mothers to their children. (2003-10-09)

Molecular mechanism of cross-species transmission of primate lentiviruses
A research group at The Institute of Medical Science, The University of Tokyo (IMSUT) showed that gorilla APOBEC3G potentially plays a role in inhibiting SIVcpz replication. Intriguingly, the research group demonstrated that an amino acid substitution in SIVcpz Vif, M16E, is sufficient to overcome gorilla APOBEC3G-mediated restriction. (2020-10-07)

CryoSat ready to be launched
ESA's CryoSat spacecraft is to be launched on a Rockot vehicle from the Plesetsk Cosmodrome in Russia on Saturday 8 October. CryoSat will measure the ice at the Earth's poles with previously unattained accuracy. (2005-09-29)

Why does an anesthetic make us lose consciousness?
Neuroscientists at Goethe University Frankfurt and the Max Planck Institute for Dynamics and Self-Organization in Göttingen have now discovered that certain areas of the brain generate less information when under anesthesia. (2017-06-13)

HIV 2015
This meeting brings together scientists, policy makers, and international organizations dedicated to advancing our scientific knowledge of HIV and translating that information into the most effective programs for reducing transmission. (2015-05-13)

Study identifies target for preventing sexual transmission of HIV
Researchers have shown that it may be possible to block male to female HIV transmission in heterosexual intercourse and have identified the target for blocking that transmission, according to an article from the Oct. 14 issue of Science, presented today at the American Medical Association 23rd Annual Science Reporters Conference in Washington, D.C. (2004-10-14)

Study supports airborne spread of COVID-19 indoors
New research from the University of Georgia supports growing evidence for airborne transmission of COVID-19 in enclosed spaces. (2020-09-29)

Simple measures can reduce spread of respiratory viruses
Blocking transmission of respiratory viruses is an important part of halting spread of disease if an epidemic breaks out. A Cochrane Review has found that good hand-washing with normal soap and water are effective ways of containing respiratory virus epidemics. This is particularly important for children because it will help to protect them as well as reduce the chance of passing viruses to other household members. (2007-10-16)

Low to moderate risk of locally transmitted cases of Zika in parts of Europe
ECDC has updated its rapid risk assessment on the Zika epidemic that continues to evolve in the Americas and the Caribbean. (2016-05-24)

Mapping the introduction of the COVID-19 epidemic in the United Kingdom using genomic analysis
The SARS-CoV-2 virus was introduced to the United Kingdom well over 1,000 times in early 2020, according to researchers who analyzed more than 50,000 viral sequences from the first wave of the COVID-19 pandemic in the UK. (2021-01-08)

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