Rotateq targets five major strains of rotavirus, which account for 90% of rotavirus disease.
About 1, 200 Scots infants have to go to hospital every year due to rotavirus.
He said it was vital that children who developed rotavirus diarrhoea were kept hydrated.
And that in turn will cause unnecessary cases of rotavirus infection, debilitating diarrhea and, in a few children, death.
Both studies found vaccination significantly reduced the number of children who had to be treated in hospital due to rotavirus.
In the US, it is claimed rotavirus-related hospital admissions have fallen by as much as 86% due to the vaccine.
The company will work with regulatory authorities to continue to provide the vaccine to help protect children from rotavirus disease.
Offit profited from the creation of the rotavirus vaccine, but does not get ongoing money from vaccine manufacturers for speaking, consulting, research, or as royalties.
Experts say accelerating introduction of the vaccine in Africa and Asia - where the rotavirus has most impact - must be made a top priority.
GlaxoSmithKline today participated in a U.S. Food and Drug Administration (FDA) advisory committee meeting convened to discuss recent findings of porcine circovirus (PCV) in rotavirus vaccines.
From July, all babies aged between two and four months will be offered a two-dose oral vaccine against the rotavirus, a highly infectious diarrhoea and vomiting bug.
Vaccination against rotavirus, which causes 40% of hospital admissions from diarrhoea in children under five worldwide, has recently been recommended for inclusion in all national immunisation programmes.
The FDA last March asked pediatricians to stop administering GlaxoSmithKline's Rotarix, a vaccine that prevents rotavirus infection, a diarrheal illness that commonly affects infants and children and that can cause severe dehydration.
In his speech as GAVI host, Gates said he was stunned to hear half a million children a year were being killed by the rotavirus infection, a preventable form of gastroenteritis.
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The results of a trial of another oral vaccine called Rotarix, developed by GlaxoSmithKline, showed it was effective against the most common strain of rotavirus and able to prevent 85% of severe cases.
Professor Tony Hart, from the University of Liverpool, said it was surprising, but welcome that the drug was effective against rotavirus, as it had been initially developed to tackle another type of organism, a protozoan.
The 254-nanometer light kills the hardy waterborne polio virus, rotavirus (which causes vomiting, diarrhea and dehydration), the bacterium that causes cholera, the virus that gives rise to hepatitis A, and cysts of cryptosporidium (a nasty parasite).
The researchers in this study examined the geometric structure and behaviour of one of the rotavirus's surface proteins, called VP4, which plays a key role in binding on to the surface of a target cell, and breaking through its membrane.
Although the committee did not issue any formal recommendations, members widely acknowledged that the benefits of vaccinating infants worldwide against rotavirus disease clearly outweigh the theoretical risks associated with the presence of porcine circovirus type 1 (PCV-1) in the vaccines.
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