Sentences with phrase «emergence of that strain»

The result has been the emergence of strains of infections including tuberculosis and malaria, pneumonia and gonorrhoea that resist all known classes of drugs.

However, the emergence of strain Ug99 in Uganda in 1999 devastated crops and has spread to Kenya, Ethiopia, Sudan and Yemen, though has yet to reach the U.S.

The emergence of that strain is a complex story.

Not exact matches

Antibiotics place a selective pressure on a bacterial population, often resulting in the emergence of resistant strains.

Such a suggestion is not out of line either with the logic of emergence or with the testimony of significant strains of religious symbolism.

In February 2004, avian influenza virus was detected in birds in Vietnam, increasing fears of the emergence of new variant strains.

Full - scale production of a vaccine that could prevent any illness at all from the strain would require at least three months after the virus's emergence to begin, but it is hoped that vaccine production could increase until one billion doses were produced by one year after the initial identification of the virus.

The emergence of the new H1N1 flu strain has demonstrated the effectiveness of existing systems to watch for human flu outbreaks while also proving a long - standing theory that pigs could serve as mixing vessels for a pandemic virus.

Pandemic flu continues to threaten public health, especially in the wake of the recent emergence of an H7N9 low pathogenic avian influenza strain in humans.

Based on a pathogen's evolutionary history, researchers hope to spot the modern emergence of antibiotic - resistant strains.

However, genetic resistance in crop varieties is frequently defeated by the emergence of new rust strains, turning what used to be a disease resistant plant variety to one that is completely vulnerable.

Next, the investigators constructed a mathematical model to explain how the virus evolves during ART without the emergence of highly drug - resistant strains.

Over-the-counter sales of amantadine in China may have favored the emergence of resistant strains, Bright says.

The emergence of the final strain is imminent.

Professor De Voss said the scale of the threat, compounded by the emergence of increasingly drug - resistant strains of bacteria, meant it was vital to find new ways to combat tuberculosis.

The new backbone could help streamline annual vaccine production, which could be especially relevant during a pandemic, notes Kawaoka's group, when the sudden emergence of novel strains forces companies to rapidly make millions of doses of a new vaccine.

«You could have the emergence of superhot strains,» as a result, he says.

The findings offer much - needed strategies for monitoring the emergence of dangerous bird flu strains capable of infecting humans and for developing more effective vaccines.

If the treatment, described here this week at the annual meeting of the American Society for Microbiology, works in humans, it could help prevent the emergence of resistant strains of the bacteria.

In the humanized mouse model under the conditions studied here, partial loss of cxcr4 in human T cells due to treatment with X4 - ZFNs provided selective pressure for either the evolution or emergence of a pre-existing single amino acid mutation in the V3 loop of the infecting X4 HIV - 1 strain that enabled it to use CCR5 as efficiently as CXCR4.

«We were able to create, within seven days, the emergence in the swarm of an epidemic strain that took at least several years to occur in nature,» Vignuzzi said.

Recent genomic advances are contributing to our understanding of the emergence and spread of a multidrug - resistant cholera strain [78], for example, and helping to identify variants that might account for differences in host susceptibility to other waterborne infections such as schistosomiasis [79], [80].

The emergence of new strains, and the lack of cross-protection by existing vaccines, does not leave much time for vaccine development.

Although the morbidity and mortality of that pandemic were lower than feared, public health professionals continuously monitor for the emergence of more virulent strains [61].

A fundamental problem in infectious disease is that pathogens and vectors are continually evolving, such that disease control efforts can eventually lead to emergence of resistant strains and rebound of disease in a less controllable form.

Various studies predict an average 30 percent reduction in farm incomes due to climate change impacts, including greater extremes in temperatures and rainfall (floods, droughts) and the emergence of new pest and disease strains.

In the past decade, the rapid spread of aggressive strains of yellow rust, and the emergence and spread of Ug99, have demonstrated that only combined, international efforts may solve or reduce these serious problems, which are threatening the daily bread supply in many wheat growing areas in Asia and Africa.

«The standard vaccines that are in current use are safe and effective, and not prone to cause the emergence of more dangerous strains of viruses.

Another very worrisome development is the emergence of multi-resistant Neisseria strains that cause the STD gonorrhoea.

«Continuing global genetic surveillance and investigation will help us to identify the emergence of further resistant strains and improve our understanding of how they arise and spread.»

Such approaches are becoming less effective due to the emergence of pesticide - resistant mosquito populations and drug - resistant strains of the parasite.

The scientists were able to characterise distinct genetic patterns or «fingerprints» for each of the strains, showing the approach offers a rapid and novel way to detect and track the global emergence of drug resistance.

Many existing treatments for malaria - one of the deadliest infectious diseases - target only one stage of the complex life cycle of the Plasmodium parasite that causes the disease, and are further limited by the emergence of drug resistance in particular strains.

7/16/2007 Researchers Discover Key Mechanism to Emergence of Deadly Strep Bacteria The incidence of serious strep infections has risen dramatically in the last three decades, and this increase is largely attributed to the spread around the globe of a single strain of strep known as the invasive M1T1 clone.

Due to the emergence of antibiotic - resistant strains, the World Health Organization has recently classified H. pylori in group 2 high - priority bacteria for which new treatments are urgently needed.

«Our greatest challenge impacting human health and our eco-systems stems from the ongoing emergence of new viral strains and mutants as a consequence of globalisation, migration and travel.

Antimicrobial treatment of K. pneumoniae infections has become increasingly difficult as a consequence of the emergence and spread of strains that are resistant to multiple antimicrobials.

A better understanding of the genomic changes that facilitate the emergence and spread of drug resistant M. tuberculosis strains is required.

Although we are beginning to understand the processes that underlie the evolutionary dynamics of seasonal influenza viruses, the timing and nature of emergence of new virus strains remain mostly unpredictable.

It is widely recognised that the widespread use of antibiotics has generated selective pressures that have driven the emergence of resistant strains.

While anti-malarial drugs exist, the emergence of drug - resistant parasite strains remains a global health concern and no vaccine has been licensed to date.

Although high in promastigotes in vitro, aneuploidy dropped significantly in hamster amastigotes, in a progressive and strain - specific manner, accompanied by the emergence of new polysomies.

This finding urges further vigilance and improved control measures to limit the dissemination of this lineage and the emergence of more C. difficile MDR - strains.

Klebsiella pneumoniae shows increasing emergence of multidrug - resistant lineages, including strains resistant to all available antimicrobial drugs.

If these technologies prolong infectious periods of hyperpathogenic strains, as we have shown vaccination can, they too could create conditions favouring the emergence of highly lethal strains.

Our data show that anti-disease vaccines that do not prevent transmission can create conditions that promote the emergence of pathogen strains that cause more severe disease in unvaccinated hosts.

Annual testing is important even in animals receiving a monthly preventative, because of the emergence of new strains of Heartworms that are resistant to the preventative medications.

In the rural regions of Southern China where SARS broke out, the people and animals lived in inordinately close contact and there was widespread use of wild species for food and traditional medicine, along with little testing available to catch new strains of diseases, the conditions there promoted the emergence of the virus.

Perhaps it has something to do with the peculiar mixture of post-68 entropy and diasporic unravelling of mass political and social movements and the concomitant emergence of more radically elusive and secretive strains of resistance, unable or unwilling to be reduced to a defining form or identity.

Antibiotics result in the emergence of resistant strains the same way levees create greater flooding downstream.