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Tag: "vaccinated" at biology news

Defective immune system response to smallpox vaccine detailed in new study

...ive months of 2003, the U.S. Department of Defense vaccinated more than 450,000 personnel against smallpox. During this period, the majority of those who deferred vaccination cited atopic dermatitis or other skin conditions as the main reason. ...

Attractive birds more immune against bird flu

...ead spots. The new study shows that males that are vaccinated against Newcastle virus produce more antibodies if they have large forehead spots. "Thus it seems that the female uses the forehead spot as a health indicator. When she chooses males with a large forehead spots, she takes not only the healthiest mal...

Genomics-based vaccine could prevent deadly cattle disease

...of T. parva . When compared with control animals, vaccinated cattle showed significantly stronger immune response to the parasite. "This study is a true milestone," says Fraser-Liggett, president of TIGR. "It's one of the first to take advantage of genomic technologies and build a test vaccine using immune k...

Plant-derived vaccines safeguard against deadly plague

...adverse reaction," said Mason. More than half the vaccinated animals survived the challenge with all forms of the antigen, and guinea pigs vaccinated with V antigen alone had the highest survival rates. "This study provided validation of our plant...

Radiation-killed bacteria vaccine induces broad immune response in mice

...eria with lethal doses of gamma radiation and then vaccinated a group of 10 mice twice with the irradiated bacte...imals). All the unvaccinated mice and all the mice vaccinated with heat-killed Listeria died, but 80 percent of the mice vaccinated with the irradiated bacteri...

Experimental vaccine protects lab animals against several strains of H5N1

... in human trials. In the study, the ferrets were vaccinated intramuscularly with one or two doses of vaccine. Both schedules induced a protective antibody response, but the two-dose schedule induced higher levels of antibodies that were cross-reactive to various H5N1 viruses. Human clinical trials have seen s...

AIDS vaccine research offers new insights on survival

...evelopment of a much milder form of the disease in vaccinated monkeys that subsequently become infected," he add...n immunodeficiency virus (SIV) -- 24 of which were vaccinated and six of which were not -- the immunity generated by the vaccine controlled infection for approxim...

Smokers invite to test vaccine against nicotine addiction

...hat the vaccine also will prevent relapse. When a vaccinated smoker lights up months after quitting, the person should not experience the nicotine-triggered reward that tempts most people back into the habit. Northern California smokers over 18 are invited to join a national study to determine whether NicVax...

Control measures fail to stop spread of new H5N1 virus

...omas Chair at St. Jude. Based on their study of vaccinated poultry the Hong Kong/St. Jude team suggested that the vaccination itself might have facilitated emergence of this new variant. This emergence and rapid distribution of FL, despite the vaccination program that was started in September 2005, also ...

MRSA vaccine shows promise in mouse study

...ial or no protection. Fifty to 70 percent of mice vaccinated with one of these proteins and injected with a dos...ice, were still alive one week later. When they vaccinated the mice using the combined vaccine, however, all of the mice survived. Although unvaccinated mice ...

Mayo Clinic Cancer Center: Harnessing the measles virus to attack cancer

... to measles, either having had the disease or been vaccinated against it. In the 1970s, measles infections were observed to cause regression of pre-existing cancer tumors in children. This information was noted, but nothing was done to study this phenomenon until the late 1990s, when under the direction of S...

H9N2 avian flu vaccine paired with adjuvant provokes strong human immune response at low doses

...tion by naturally occurring virus. The researchers vaccinated 48 volunteers with non-adjuvanted H9N2 vaccine (ma...e at one of the same four dosages. Volunteers were vaccinated twice, with inoculations spaced 28 days apart. An avian flu vaccine, like the seasonal flu vaccin...

Bird flu vaccine additive may stretch supply

...N2 is itself a pandemic threat. The researchers vaccinated 96 young adults who were divided into eight groups...uthor of the study. "What vaccines do is cause the vaccinated person to produce antibodies in their bloodstream. The higher the antibody levels, in general, the ...

Malaria vaccine prompts victims' immune system to eliminate parasite from mosquitoes

..., after the mosquito has fed upon the blood of the vaccinated individual. The vaccine would not prevent or limit malarial disease in the person who received it. An article describing this work was published on the Web site of Proceedings of the National Academy of Sciences. The vaccine was developed with co...

Experimental vaccine protects mice against deadly 1918 flu virus

...mmunized with the experimental DNA vaccine. All 10 vaccinated mice survived the challenge with the deadly virus....however, this had no effect on the immunity of the vaccinated mice to the 1918 virus. In contrast, the researchers discovered that transferring antibody-rich immu...

First-time analysis reveals millions of Europeans left at risk from influenza

...of the population (223.4 million people) should be vaccinated against influenza, ranging from 56.4% in the UK to 41.6% in Cyprus. There were on average of 174 vaccine doses distributed per 1000 population within the EU-25, which leads to an average vaccination rate of the target population of 35.4% based on...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...t a placebo. Prior to the 2004-05 flu season, they vaccinated 1,247 people aged 18 to 46 in four Michigan commun...d Ohmit will continue to follow study participants vaccinated in Fall 2005 , without vaccinating them this year, to see whether the shot or the spray offer long-t...

Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack

...t), modified (which occurs in people who have been vaccinated and has a death rate of about 10 percent), and fla...gini said. Research suggests that those previously vaccinated may still have substantial residual immunity although, if infected, they could still transmit the vi...

Research holds promise for herpes vaccine

...l, MSU virologist William Halford showed that mice vaccinated with a live, genetically-modified herpes simplex virus type 1 (HSV-1) showed no signs of disease 30 days after being exposed to a particularly lethal "wild-type" strain of the virus. In contrast, a second group of mice that received a more conventi...

Progress made in HIV vaccine development

...ully eliciting immune responses in essentially all vaccinated volunteers," they said. "The Ad5 recombinant HIV vaccine had both a higher percentage of responders and, overall, a higher magnitude of responses than the DNA vaccine." The next step, according to Graham, is "to evaluate the combination of DNA pri...

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