Zika Was First Discovered in 1947. Why Is it Now a Threat?
Mostly innocuous and fairly unknown until a few weeks ago, the Zika virus is suddenly dominating the news. Under scrutiny is the virus's putative link with a congenital birth defect called microcephaly, which causes babies to be born with abnormally small heads and undeveloped brains. Two recent publications [1,2] have documented finding the genome of the Zika virus in the amniotic fluid and brains of fetuses affected by microcephaly from three different mothers. These numbers are still too small to constitute a proof, and in fact, alternative theories are already cropping up: an organization of Argentinean doctors has published a report in which they claim that it's not the virus, rather the insecticide used against the mosquitos, that causes the birth defect. But what is Zika and, if the claims about microcephaly turn out to be true, how can it be harmless to most people yet so detrimental to a developing fetus? To answer these questions we have to take a step back and understand how viruses work and why some are endemic in the population, while others seem to come and go in waves. The Zika virus was first isolated in 1947 from a rhesus monkey and from a pool of mosquitos in the Zika forest in Uganda. It belongs to the same family of viruses as dengue, yellow fever, and West Nile virus. However, unlike its close relatives, Zika was thought to be relatively harmless: most infected people experience no symptoms and a few have just a rash and mild fever. Originally confined ...
Publication date: Available online 3 June 2020Source: Carbohydrate PolymersAuthor(s): Zhenguang Liu, Lin Yu, Pengfei Gu, Ruonan Bo, Adelijiang Wusiman, Jiaguo Liu, Yuanlaing Hu, Deyun Wang
Authors: Ferella A, Aguirreburualde MSP, Sammarruco A, Parreño V, Santos MJD, Mozgovoj M Abstract Bovine respiratory syncytial virus (BRSV) is one of the most relevant agents responsible for respiratory disease in cattle from both dairy and beef farms. BRSV is spread by horizontal contact causing a constant presence of seropositive animals that favors viral circulation throughout the year. Moreover, reinfections with BRSV are frequent between animals regardless of their age as BRSV does not confer long-lasting protective immunity. Several studies have demonstrated the circulation of BRSV in cattle from diffe...
South Africa sees record jump in cases; New York urges protesters to get tested; Turkey announces weekend lockdown in 15 cities; US jobless claims pass 42m. Follow the latest updatesBrazil infections pass 600,000 as death toll passes Italy ’sSouth Africa sees record jump in casesCoronavirus latest: at a glanceSee all our coronavirus coverage6.27amBSTBritain ’s test-and-trace systemcould take another four months before it is working properly, the Guardian has learned, raising concerns about how the country might cope with a second wave of coronavirus infections. Tony Prestedge, a banker drafted in to run the NHS...
CONCLUSIONS: Immunization Information System is an essential technological innovation for the management of immunization actions. However, the production of timely records and the use of information are still challenges. Investments in training are required to ensure System's management and operationalization activities. PMID: 32490998 [PubMed - in process]
Abstract OBJECTIVE: to analyze the social conditions and life projects of non-pregnant adolescents, pregnant adolescents and pregnant women who are victims of domestic violence. METHODS: This is a exploratory, descriptive and comparative study of a quantitative and qualitative character. Ninety adolescents between 12 and 18 years old participated in the study, consisting of three groups: Group A (30 non-pregnant adolescents with no history of violence); Group B (30 pregnant adolescents with no history of violence); and Group C (30 pregnant adolescents with a history of violence). The tools used were a questio...
[Thomson Reuters Foundation] Rome -Thursday's GAVI vaccine summit aims to help people in the developing world get access to any eventual coronavirus vaccine. What are the obstacles?
Publication date: Available online 3 June 2020Source: Social Science &MedicineAuthor(s): Christina A. Laurenzi, Sarah Skeen, Bronwyne J. Coetzee, Sarah Gordon, Vuyolwethu Notholi, Mark Tomlinson
Publication date: Available online 3 June 2020Source: NeuropsychologiaAuthor(s): Selene Petit, Nicholas A. Badcock, Alexandra Woolgar
The GAVI vaccines alliance said on Thursday it had raised $8.8 billion from international donor governments, companies and philanthropic foundations to fund its immunisation programmes through to 2025.
Novavax Inc said on Thursday the U.S. Department of Defense (DoD) will give the late-stage biotech company up to $60 million to fund the manufacturing of its experimental COVID-19 vaccine.
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