(HealthDay)—Don't let this year's flu season catch you by surprise.
(HealthDay)—Don't let this year's flu season catch you by surprise.
The Zika virus has struck fear throughout the Americas, but determining whether people have been infected can be difficult.
The swine flu vaccine, when administered to pregnant women, caused neither fetal injury nor infant death, writes Karolinska Institutet professor Johan F Ludvigsson an opinion piece in Tuesday's Dagens Nyheter in conjunction ...
The news that the nasal spray form of the influenza vaccine will not be available this year should not stop anyone from getting vaccinated against the flu virus, according to an expert at Baylor College of Medicine's Influenza ...
A molecule the body produces naturally in response to virus infection could be a viable flu treatment in the future, suggest researchers at the Francis Crick Institute in London.
A computer model developed by scientists at the University of Chicago shows that small increases in transmission rates of the seasonal influenza A virus (H3N2) can lead to rapid evolution of new strains that spread globally ...
Dana-Farber Cancer Institute investigators report they have discovered a type of immune antibody that can rapidly evolve to neutralize a wide array of influenza virus strains - including those the body hasn't yet encountered.
A network of researchers in the United States and Canada will try to spare thousands of patients the dangers of heart attacks and hospitalizations over the next five years in a trial of a high-dose flu vaccine.
In mouse studies, researchers from the Johns Hopkins Bloomberg School of Public Health have found that progesterone – a female sex hormone contained in most forms of hormone-based birth control – appears to stave off ...
(HealthDay)—Swedish researchers report that the vaccine against the H1N1 "swine flu" strain of influenza doesn't seem to have a link to birth defects.
Kids may get more of a sting from flu vaccination this fall: Doctors are gearing up to give shots only, because U.S. health officials say the easy-to-use nasal spray version of the vaccine isn't working as well as a jab.
The pharmacy chain pitches started in August: Come in and get your flu shot.
UNSW scientists have identified three new strains of highly contagious norovirus that are responsible for a major new epidemic of viral gastroenteritis that has affected hundreds of thousands of Australians over winter.
A new study from scientists at The Scripps Research Institute (TSRI) shows that "holes" in HIV's defensive sugar shield could be important in designing an HIV vaccine.
Removal of parasitic cyst from boy's brain
Influenza, commonly referred to as the flu, is an infectious disease caused by RNA viruses of the family Orthomyxoviridae (the influenza viruses), that affects birds and mammals. The most common symptoms of the disease are chills, fever, sore throat, muscle pains, severe headache, coughing, weakness/fatigue and general discomfort. Although it is often confused with other influenza-like illnesses, especially the common cold, influenza is a more severe disease than the common cold and is caused by a different type of virus. Influenza may produce nausea and vomiting, particularly in children, but these symptoms are more common in the unrelated gastroenteritis, which is sometimes, inaccurately, referred to as "stomach flu." Flu can occasionally cause either direct viral pneumonia or secondary bacterial pneumonia.
Typically, influenza is transmitted through the air by coughs or sneezes, creating aerosols containing the virus. Influenza can also be transmitted by direct contact with bird droppings or nasal secretions, or through contact with contaminated surfaces. Airborne aerosols have been thought to cause most infections, although which means of transmission is most important is not absolutely clear. Influenza viruses can be inactivated by sunlight, disinfectants and detergents. As the virus can be inactivated by soap, frequent hand washing reduces the risk of infection.
Influenza spreads around the world in seasonal epidemics, resulting in the deaths of between &10000000000250000000000250,000 and &10000000000500000000000500,000 people every year, up to millions in some pandemic years. On average 41,400 people died each year in the United States between 1979 and 2001 from influenza. In 2010 the Centers for Disease Control and Prevention (CDC) in the United States changed the way it reports the 30 year estimates for deaths. Now they are reported as a range from a low of about 3,300 deaths to a high of 49,000 per year.
Three influenza pandemics occurred in the 20th century and killed tens of millions of people, with each of these pandemics being caused by the appearance of a new strain of the virus in humans. Often, these new strains appear when an existing flu virus spreads to humans from other animal species, or when an existing human strain picks up new genes from a virus that usually infects birds or pigs. An avian strain named H5N1 raised the concern of a new influenza pandemic, after it emerged in Asia in the 1990s, but it has not evolved to a form that spreads easily between people. In April 2009 a novel flu strain evolved that combined genes from human, pig, and bird flu, initially dubbed "swine flu" and also known as influenza A/H1N1, emerged in Mexico, the United States, and several other nations. The World Health Organization officially declared the outbreak to be a pandemic on June 11, 2009 (see 2009 flu pandemic). The WHO's declaration of a pandemic level 6 was an indication of spread, not severity, the strain actually having a lower mortality rate than common flu outbreaks.
Vaccinations against influenza are usually made available to people in developed countries. Farmed poultry is often vaccinated to avoid decimation of the flocks. The most common human vaccine is the trivalent influenza vaccine (TIV) that contains purified and inactivated antigens against three viral strains. Typically, this vaccine includes material from two influenza A virus subtypes and one influenza B virus strain. The TIV carries no risk of transmitting the disease, and it has very low reactivity. A vaccine formulated for one year may be ineffective in the following year, since the influenza virus evolves rapidly, and new strains quickly replace the older ones. Antiviral drugs such as the neuraminidase inhibitor oseltamivir can be used to treat influenza, however the effectiveness is difficult to determine due to much of the data remaining unpublished.
Sufferers of migraines, cluster headaches, tension headaches or other headache disorders are at greater risk of developing a thyroid condition called hypothyroidism, according to a study by University of Cincinnati College ...
In a hopeful development for children born with congenital heart defects, scientists said Tuesday they had built artificial blood vessels which grew unaided when implanted into lambs, right into adulthood.
ETH researchers have discovered a molecule in liver cells that controls the release of fat into the bloodstream. This "lock keeper" is present in large quantities in overweight people and leads indirectly to vascular narrowing.
A blood pressure drug may make a type of lung cancer treatment more effective, suggests a new study.
From scissors and staplers to car keys and cell phones, we pass objects to other people every day. We often try to pass the objects so that the handle or other useful feature is facing the appropriate direction for the person ...
Arboviruses – viruses transmitted by insects such as mosquitoes – pose a considerable threat to both human and animal health. Despite that, not enough is known about the complex interactions between the virus and the ...
(Medical Xpress)—A team of researchers with members from Europe and the U.S. has found increased levels of testosterone can cause a man to engage in both social and antisocial behaviors. In their paper published in Proceedings ...
Dogs are less likely to follow bad advice than children, according to a new study conducted at the Canine Cognition Center at Yale. In contrast to children, dogs only copy a human's actions if they are absolutely necessary ...
A Colorado State University researcher has uncovered definitive evidence about adolescents' lack of physical activity, and the results are not good.
Living on a farm in early childhood is linked to a lower risk of allergies in adulthood and stronger lung function in women, according to researchers at the University of Melbourne.