Thu, Apr 27, 2017 | updated 06:21 PM IST

Turns out, Zika infection caused by one virus serotype

Updated: Jul 30, 2016 08:15 IST      
Turns out, Zika infection caused by one virus serotype

Washington D.C, Jul 30 (ANI): If a recent study is to be believed, then vaccination against a single strain of Zika virus is enough to protect us from the genetically diverse strains of the virus.

Zika virus strains are grouped into two distinct genetic lineages: African and Asian. The Zika virus strain circulating in the current outbreak affecting Central and South America and the Caribbean is of the Asian lineage.

When individuals are infected with Zika virus, their immune systems produce neutralizing antibodies to fight the infection. These antibodies may offer immunity against future infections by strains of the same Zika virus lineage.

Until now, it was unclear whether the antibodies could also protect against infection with strains of the other Zika virus lineage. Results from laboratory experiments and tests in mice now show this may be possible.

Such protection indicates that, despite being genetically distinct, all strains of Zika virus have identical surface antigens and therefore are the same serotype. The closely-related Dengue virus has four serotypes, which is why people can be infected with dengue as many as four times, once with each serotype.

In this study conducted by investigators from the National Institute of Allergy and Infectious Diseases (NIAID), Washington University in St. Louis and Emory University in Atlanta, scientists took serum samples from people infected by Zika virus strains circulating in South America and mixed them with multiple strains of the virus in the laboratory to see how well the serum antibodies neutralized the virus.

Results showed that antibodies elicited after infection with Zika virus strains of the Asian lineage were able to potently inhibit both Asian lineage and African lineage strains. The researchers conducted similar experiments using serum samples from mice and found that sera from mice infected with either Asian or African Zika virus strains were equally effective in neutralizing virus strains from either lineage.

The findings are important to the ongoing effort to rapidly develop a preventive Zika vaccine, according to the authors. Because there is only one Zika virus serotype, antibodies elicited by any Zika virus strain in a vaccine could conceivably confer protection against all Zika virus strains, the researchers concluded.

The study appears in the journal Cell Reports. (ANI)

Parkinson's disease starts in gut: Study

Updated: Apr 27, 2017 10:03 IST     

Washington D.C. [USA], Apr 27 (ANI): A recent study suggests that parkinson's disease, a disorder of the central nervous system, may start in the gut and spread to the brain via the vagus nerve.

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Lung for Long: Gasp No More

Updated: Apr 26, 2017 18:45 IST     

New Delhi [India], Apr 26 (ANI-Businesswire India): Lungs in Delhi seem to be in dire straits. In the midst of ever thickening air pollution and lifestyle gone astray, lung power is ebbing fast. Data emerging from April 25 lung health camp organized in iconic Press Club of India (PCI) on the occasion of World Asthma Day pressed panic button as regards lung health of the capital city.

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Risk of obesity influenced by changes in our genes

Updated: Apr 26, 2017 15:22 IST     

New Delhi [India], Apr 26 (ANI): According to new study, a child's risk of obesity while growing up can be influenced by modifications to their DNA prior to birth.

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Patient with rare knee cancer undergoes life saving surgery

Updated: Apr 26, 2017 13:52 IST     

New Delhi [India], Apr 26 (ANI): A resident of Ganganager, in Rajasthan, was diagnosed of Large Soft Tissue Sarcoma (9Kg), with Neuro Vascular involvement.

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Here`s how protein impacts intellectual disability

Updated: Apr 26, 2017 07:36 IST     

Washington D.C. [USA], Apr 26 (ANI): A new study has paved the way for the potential treatments of intellectual disability and other neurodevelopmental disorders.

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Stem cells can help identify neuronal defects, suggests Study

Updated: Apr 25, 2017 12:26 IST     

Washington D.C. [USA], Apr 25 (ANI): According to a recent study, the researchers used stem cells derived from patients with Angelman syndrome to identify the underlying cellular defects that cause the rare neurogenetic disorder.

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#WorldMalariaDay: Effective steps to prevent Malaria

Updated: Apr 25, 2017 11:01 IST     

New Delhi [India], Apr 25 (ANI): The theme for World Malaria Day this year is "End Malaria for Good".

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Artificial Intelligence may help in diagnosing Tuberoculosis

Updated: Apr 25, 2017 11:01 IST     

Washington D.C. [USA], Apr 25 (ANI): If you are a patient of Tuberculosis, then we might have some good news for you.

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London [UK], Apr 25 (ANI): According to a new study, only one in five victims with serious injuries caused by child abuse in England and Wales gets treated at a major trauma centre.

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Gene reveals cause of fatal childhood disorder: Study

Updated: Apr 24, 2017 17:51 IST     

New Delhi [India], Apr 24 (ANI): A gene, involved in brain development, which can lead to severe disability and infant death, has been identified by scientists.

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Alcohol: the modern age liver killer

Updated: Apr 24, 2017 17:51 IST     

New Delhi [India], Apr 24 (ANI): Alcohol is predominantly metabolized through liver, hence its cumulative toxicity over years play important role in liver diseases or pancreatic diseases.

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Washington D.C. [USA], April 24 (ANI): Due to increasing deaths because of prostate cancer among men, US researchers have suggested a special screening more frequently and at an early age to avoid the development of preclinical prostate cancer - that is not symptomatic - to advanced stages.

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Love guzzling diet sodas? Here is why you should NOT

Updated: Apr 24, 2017 07:02 IST     

New York [U.S.], Apr. 24 (ANI): Still downing gallons of diet soda despite knowing that it wrecks your body? Maybe the knowledge of artificially sweetened beverages taking a toll on your brain as well ought to make an impact on your unhealthy habit.

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Washington D.C. [USA], Apr 23 (ANI): A recent study has demonstrated that in the general population, central obesity, insulin resistance, diabetes, lipid abnormalities and high alcohol consumption were the strongest predictors of severe liver disease.

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Breastmilk may help detect your cancer risk

Updated: Apr 23, 2017 11:50 IST     

Washington D.C. [USA], Apr 23 (ANI): Breastmilk might offer clues about a woman's cancer risk, according to a recent research.

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Soon, new weapon in war against obesity

Updated: Apr 23, 2017 11:14 IST     

Washington D.C. [USA], Apr 23 (ANI): A team of scientists has uncovered a potential approach to combat obesity.

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Turns out, being obese is worse than smoking

Updated: Apr 23, 2017 10:52 IST     

Washington D.C. [USA], Apr 23 (ANI): You may want to shed those extra kilos as a recent study has found obesity as a top cause of preventable life-years lost.

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Washington D.C. [USA], Apr 23 (ANI): Testing for molecular markers in the urine of kidney transplant patients could reveal whether the transplant is failing and why, according to a recent research.

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From urine to blood: How antibiotic resistance spreads

Updated: Apr 23, 2017 09:25 IST     

Washington D.C. [USA], Apr 23 (ANI): People with drug-resistant bacteria in their urine or stool samples are at an increased risk of developing Sepsis, a bloodstream infection that is also resistant to certain antibiotics, according to a recent study.

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Move over contact lenses, LASIK is better

Updated: Apr 22, 2017 18:05 IST     

Washington D.C. [USA], April 22 (ANI): Good news for those who underwent LASIK (laser-assisted in situ keratomileusis) for correction of their vision, as a recent study has found that the rate of cornea infection is lower.

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