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Semen is an organic fluid, also known as seminal fluid, that usually contains spermatozoa. It is secreted by the gonads (sexual glands) and other sexual organs of male or hermaphroditic animals and can fertilize female ova. The process of discharge is called ejaculation.
Math professor develops scientific model to report ways Zika virus proliferates

Math professor develops scientific model to report ways Zika virus proliferates

A University of Miami math professor has developed a scientific model to address the various ways the Zika virus proliferates. The study, published June 17, 2016 in Scientific Reports, reveals that mosquito control should remain the most important mitigation method to control the virus. [More]
Sperm of smokers has greater extent of DNA damage than that of non-smokers

Sperm of smokers has greater extent of DNA damage than that of non-smokers

A recent study found that that sperm of men who smoke has a greater extent of DNA damage than that of non-smokers. [More]
Researcher aims to develop easy-to-use, inexpensive sperm sorting devices to help infertile couples

Researcher aims to develop easy-to-use, inexpensive sperm sorting devices to help infertile couples

The competition is fierce and only the strongest survive the obstacle course within the female reproductive tract. Of the millions of sperm that enter the vagina, only about 10 or so make it to the oocyte or egg, demonstrating how rigorous the natural sperm selection process really is. [More]
Study finds link between late onset of puberty and subsequent semen quality in men

Study finds link between late onset of puberty and subsequent semen quality in men

A new study from Rigshospitalet and EDMaRC finds a strong association between late onset of puberty and subsequent semen quality. This is the first study of its kind to investigate the influence of pubertal timing on male reproductive health. [More]
Sexual transmission of Ebola virus could potentially reignite disease outbreak

Sexual transmission of Ebola virus could potentially reignite disease outbreak

Sexual transmission of the Ebola virus could have a major impact on the dynamics of the disease, potentially reigniting an outbreak that has been contained by public health interventions, according to research by University of Georgia ecologists just published in the Royal Society journal Biology Letters. [More]
Alabama physician recommends childbearing-age women to take precautions against Zika virus

Alabama physician recommends childbearing-age women to take precautions against Zika virus

As concerns about the Zika virus rise among women of childbearing age in the United States, Joseph Biggio, M.D., director of the University of Alabama at Birmingham Division of Maternal-Fetal Medicine, wants those who are pregnant or trying to conceive to take precautions. [More]
Hepatitis B virus screening for Asian American adults can help prevent onset of liver diseases

Hepatitis B virus screening for Asian American adults can help prevent onset of liver diseases

A community-based hepatitis B virus screening effort led by UC Davis researchers found that targeted outreach to Asian American populations can identify groups at high risk for infection and direct them to appropriate follow-up care to help prevent the onset of liver diseases, including cancer. [More]
Study sheds light on several aspects of Ebola virus flare-ups in Liberia

Study sheds light on several aspects of Ebola virus flare-ups in Liberia

Ebola virus samples taken from patients in Liberia in June 2015 are strikingly similar in their genetic makeup to other Ebola virus sequences from Western Africa, according to research published online today in the journal Science Advances. The study sheds light on several aspects of the "flare-ups" that have occurred in Liberia since the country was initially declared free of Ebola virus disease. [More]
Duke-NUS study highlights Zika virus structure and behaviour

Duke-NUS study highlights Zika virus structure and behaviour

An important breakthrough in understanding the Zika virus structure and its behaviour has been highlighted in a study by Duke-NUS Medical School scientists. [More]
ZIKA virus can be transmitted sexually, confirms Inserm study

ZIKA virus can be transmitted sexually, confirms Inserm study

A study by researchers from Inserm, the Paris Public Hospitals (Bichat Hospital, AP-HP), Aix-Marseille University, and the National Reference Centre for Arboviruses confirms that the ZIKA virus can be transmitted sexually. Their analyses have shown 100% genetic correlation between the form of the virus present in a man who contracted the virus in Brazil and that of a woman who had never travelled in the epidemic area, but who had sexual relations with him. These results are published in The New England Journal of medicine. [More]
Innovative HIV vaccine candidate generates protection against repeated AIDS virus exposures

Innovative HIV vaccine candidate generates protection against repeated AIDS virus exposures

Mymetics Corporation, a pioneer in the research and development of virosome-based vaccines to prevent transmission of human infectious diseases across mucosal membranes, announced today that its innovative HIV vaccine candidate has shown to generate significant protection in groups of twelve female monkeys against repeated AIDS virus exposures during part of the preclinical study. [More]
Zika threat to Olympics attendees? An interview with Prof. Eskild Petersen

Zika threat to Olympics attendees? An interview with Prof. Eskild Petersen

The risk in terms of the Olympics, especially for travelling populations remains low – with the notable exception of pregnant women. [More]
Women who have survived childhood cancer can become pregnant, shows study

Women who have survived childhood cancer can become pregnant, shows study

For women who have survived childhood cancer, the impact of modern chemotherapy regimens on the likelihood of becoming pregnant is generally small, and most have a good chance of conceiving, according to one of the largest studies of its kind published in The Lancet Oncology. [More]
Fertility problems put men at increased risk of metabolic diseases

Fertility problems put men at increased risk of metabolic diseases

Men with fertility problems are at risk of metabolic diseases as they age, according to work being presented at the European Association of Urology conference in Munich [More]
Understanding range of neurological disease linked with Zika virus is urgent priority, warn researchers

Understanding range of neurological disease linked with Zika virus is urgent priority, warn researchers

Understanding the scale and range of neurological disease associated with Zika virus infection is an urgent priority, warn researchers from the University of Liverpool's Institute of Infection and Global Health. [More]
Ebola survivors and close contacts have high burden of illness

Ebola survivors and close contacts have high burden of illness

Preliminary findings from PREVAIL III, a study of Ebola virus disease (EVD) survivors being conducted in Liberia, indicate that both Ebola survivors and their close contacts have a high burden of illness. However, the prevalence of eye, musculoskeletal, and neurological complications was greater among the individuals who survived EVD. [More]
Aytu BioScience announces business strategy update and Q2 financial results

Aytu BioScience announces business strategy update and Q2 financial results

Aytu BioScience, Inc., a specialty healthcare company focused on developing treatments for urological and related conditions, provided today an overview of its business and growth strategy, as well as its financial results for the quarter ended December 31, 2015. [More]
New biosensor test system developed for accurate measurements of protein molecule concentration in blood

New biosensor test system developed for accurate measurements of protein molecule concentration in blood

Researchers from the General Physics Institute of the Russian Academy of Sciences and Moscow Institute of Physics and Technology have developed a new biosensor test system based on magnetic nanoparticles. [More]
PAHO recommendations for preventing or slowing spread of Zika virus

PAHO recommendations for preventing or slowing spread of Zika virus

Zika is a mosquito-borne virus that is new to the Americas. Since Brazil reported the first cases of local transmission of the virus in May 2015, it has spread to 21 countries and territories* of the Americas (as of 23 January 2016). [More]
Involuntarily childless couples could be helped with extra sperm analysis

Involuntarily childless couples could be helped with extra sperm analysis

New research findings from Lund University in Sweden show that a simple analysis of chromosomal breaks in sperms can facilitate choice of the most efficient treatment and, thereby, increase chances of successful assisted reproduction in involuntary childless couples. [More]