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Tag: "seasonal" at biology news

The insect vector always bites twice

...ntion and care of young patients in the context of seasonal transmission of the disease. The objective of the work conducted on human African trypanosomiasis was to analyse the antibody response to identify exactly, in total saliva extract of Glossinia flies, the immunogenic proteins responsible for synthe...

Want to save polar bears? Follow the ice

...ars and researchers alike. Polar bears rely on seasonal sea ice for stalking their principal prey—ringed a...a, the researchers hope to distinguish short-term, seasonal effects and large scale phenomena such as the Arctic and North Atlantic Oscillations from the long-t...

US control strategies may make flu epidemics worse, UCLA study shows

...ut among health experts, a bigger concern than the seasonal flu is an outright flu pandemic, such as a human s...r and her group used people's attitudes toward the seasonal flu to construct their model. With seasonal flu, protective immunity ?a flu shot ?lasts only one yea...

Premature births may be linked to seasonal levels of pesticides and nitrates in surface water

...ited States vary month to month in a recurrent and seasonal manner. Pesticides and nitrates similarly vary seasonally in surface water throughout the U.S. Nitrates and pesticides can disrupt endocrine hormones and nitric oxide pathways in the developing fetus," he said. "I believe this work may lay the fo...

WHO data confirms low level of resistance to Tamiflu

...w, even when used extensively in the management of seasonal influenza," commented Dr. David Reddy, Pandemic Task Force Leader, Roche. "This provides reassurance to the scientific community that since the introduction of Tamiflu in 1999, the levels of resistance have remained similar to those seen in the clin...

NIAID expands capability for influenza research and surveillance

...tegies for controlling and lessening the impact of seasonal influenza as well as an influenza pandemic. “The ... will monitor selected communities in New York for seasonal flu virus infections, and will study the effectiveness of annual immunization programs using inactiv...

New details on how the immune system recognizes influenza

...es, diagnostics and immune-based therapies against seasonal and pandemic influenza because it reveals in molec...fection-fighting antibodies. Antibodies induced by seasonal and pandemic flu viruses or vaccines are a major component of immunity that protects against these v...

LIAI completes world's most comprehensive analysis on influenza virus data

...ing to develop vaccines and therapies against both seasonal and pandemic influenza strains, including the dead...as analyzed first due to the continuing problem of seasonal influenza and public health concerns over the possible spread of the H5N1 avian flu. "The database...

Bypassing eggs, flu vaccine grown in insect cells shows promise

...h officials seeking to protect the population from seasonal flu as well as a potential bird-flu pandemic. Using eggs to grow vaccine takes time; a flu vaccine that relies on a different technology is capable of being produced in large amounts much more quickly, a key advantage if a bird flu pandemic were to o...

NIAID DNA vaccine for H5N1 avian influenza enters human trial

...ve our production capacity for vaccines to prevent seasonal influenza and other diseases." "This influenza vaccine trial is further evidence of the ability of the NIAID Vaccine Research Center to rapidly translate basic research into potential products," he adds. "Our accelerated effort to understand and ...

How trees manage water in arid environments

...first step in that process, and it illustrates the seasonal characteristics of the forest vegetation-water rel...what happens in most coniferous forests, where the seasonal behavior of the trees is significantly influenced by temperature changes: the trees are largely dorm...

How fish species suffer as a result of warmer waters

... Bremerhaven investigated the relationship between seasonal water temperature and population density using eel... species from the North Sea which experience large seasonal temperature fluctuations, are more tolerant to higher temperatures and display wider thermal windows...

Saving endangered whales at no cost

... On the basis of these findings and estimations of seasonal whale presence determined by patterns of whale sightings, the authors estimate that, in terms of impact on right whales, each lobster caught in Canada has less than 1% of the impact of each lobster caught in Maine. The authors propose that if Mai...

UBC researchers reveal dwarf aquatic plants' hidden ancestry

...o Australia, New Zealand and India, they thrive in seasonal freshwater pools and swamps, and may blossom underwater at depths of up to one metre, or as the pools dry out. "For more than a century, scientists have been piecing together the details of the rapid rise and early diversification of flowering pla...

Bats prey on nocturnally migrating songbirds

... in spring and autumn, i.e. during main songbirds' seasonal migration. This contrasted strikingly with food co... bats' blood throughout the year, predicting major seasonal shifts in isotopic signatures towards bird prey in spring and, especially, during autumn. In paralle...

Antivirals effectively curb influenza virus

... be beneficial not only for planning management of seasonal influenza but also would be invaluable in pandemic planning. Additionally, simple solutions such as standardized randomization and study criteria would greatly facilitate trial comparison in the future. Such further studies will help us ensure we ar...

Birth rate, competition are major players in hominid extinctions

...ronments where the species are found become highly seasonal or unpredictable." Primates evolved in the Pale...o live in marginal areas and live on more dynamic, seasonal landscapes," Jablonski told attendees today (Feb. 16) at the annual meeting of the American Associat...

Scientists unlock secret of what makes plants flower

...r research had shown that plants' leaves perceived seasonal changes in day length, which triggers a long-distance signal to travel through the plant's vascular system from the leaf to the shoot apex, where flowering is induced. However, the identity of the long-distance signal remained unclear. This new re...

Mosquito genes explain response to climate change

... focus to identify specific genes that control the seasonal development of animals. Such information will help...o identify genes that animals use to control their seasonal development," Bradshaw said. "Response to day length is often the primary cue that organisms use for...

Unique gene regulation gives chilly bugs survival advantage at bottom of the world

...encased in ice for months, many insects respond to seasonal changes in day length, which regulate their development. Understanding what happens to larvae during this time may give researchers more insight into the nature and role of heat-shock proteins....

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