A new study published in PLOS Pathogens found that whooping cough immunity typically lasts at least 30 years and perhaps as long as 70 years after natural infection. The research suggests that repeat infections contribute relatively little to transmission and may even boost immunity in individuals with waning protection.
A new study reveals a relationship between the evolution of the influenza virus and immunization rates needed to prevent outbreaks. The research team found that the degree of variability in population immunity plays a crucial role in determining the risk of an outbreak.
Researchers found that young mice are resistant to proteoglycan-induced arthritis, but become susceptible with age due to immunological senescence and impaired immune regulation. This study sheds light on the complex mechanisms underlying age-related changes in arthritis susceptibility.
SourceBMC (BioMed Central)·JournalImmunity & Ageing·DateJun 10, 2009
A study found that vaccine records of internationally adopted children may not guarantee immunity against diseases such as polio, measles, and hepatitis B. The predictive value of immunization records is limited and associated with birth country, due to reasons like falsification, inaccurate entries, and lack of vaccine potency.
SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateMay 4, 2009
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A new vaccine formula has been discovered that boosts T cell immunity to protect humans from bird flu, a highly virulent virus. The formula adds a potent immune modulator to existing flu vaccines, improving their effectiveness and providing potential protection against a pandemic.
SourceUniversity of Melbourne·JournalProceedings of the National Academy of Sciences·DateMar 2, 2009
Scientists engineer a covalent immunization approach that provides immediate protection against diseases, overcoming traditional vaccine drawbacks such as lag time. The method uses adapter molecules to trigger universal immune reactions, potentially revolutionizing disease prevention.
SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateMar 2, 2009
Researchers at the University of Michigan found that mild infections play a key role in understanding and controlling cholera outbreaks. The study suggests that individuals with mild infections lose their immunity quickly, leading to a cyclical pattern of illness and recovery.
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Researchers at Vanderbilt University Medical Center have successfully recovered antibodies to the 1918 flu virus from elderly survivors, showcasing surprisingly long-lasting immunity. These antibodies could serve as a treatment option if another similar strain emerges in the future.
SourceVanderbilt University Medical Center·JournalNature·DateAug 17, 2008
A third of the world's population is infected with M. tuberculosis, and two million people die from tuberculosis every year. New, improved vaccines or vaccination strategies are urgently needed to reduce the immense burden of this disease.
A study of 504 patients with herpes zoster found that individuals with a family history of the condition were 4.35 times more likely to develop shingles. The authors suggest targeting at-risk individuals based on their family history to decrease the risk and health care expenditures associated with herpes zoster morbidity.
SourceJAMA Network·JournalArchives of Dermatology·DateMay 19, 2008
A recent article in Developmental and Comparative Immunology reveals that plants possess elements of specificity and responsiveness to disease-causing agents, similar to animal immunity. The study suggests that the plant immune surveillance genes diversify at a rate stimulated by pathogen presence, shedding new light on plant immunity.
SourceElsevier·JournalDevelopmental & Comparative Immunology·DateJan 31, 2008
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A study found that common human viruses, such as HRSV and HMPV, are responsible for outbreaks of respiratory disease in wild chimpanzees. The researchers suggest that minimizing human contact and implementing guidelines to reduce the risk of disease transmission can help protect great apes.
Researchers found that a protein produced by an immunity gene called ZAP has increased antiviral activity in humans, linked to evolutionary changes. The study suggests that studying evolutionary biology and virology can accelerate the discovery of viral-defense mechanisms.
Researchers found that antibody responses to viruses like measles and mumps remain protective for several decades, even for life. This means people may not need booster shots as frequently as previously thought, potentially reducing unnecessary vaccinations.
SourceOregon Health & Science University·JournalNew England Journal of Medicine·DateNov 7, 2007
Dutch researcher Mike van der Kolk discovered that people who are frequently infected with malaria parasites can develop immunity against the gametocyte, inhibiting the spread of the parasite. This natural immunity prevents the parasite from reproducing in mosquitoes, ultimately stopping its transmission.
SourceNetherlands Organization for Scientific Research·DateMar 25, 2007
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A new UCLA study found that practicing Tai Chi chih alone boosts immunity to a level comparable to the standard vaccine against shingles. Combining Tai Chi with the vaccine results in a clinically relevant boost and added benefits for middle-aged adults.
SourceUniversity of California - Los Angeles·JournalJournal of the American Geriatrics Society·DateMar 22, 2007
Researchers at VIB have discovered the mechanism behind reduced inflammation in mice, which produces just enough interferons to activate the immune system against bacteria. This finding is relevant to the quest for new therapeutics for bacterial infections and may provide a breakthrough in combating these deadly diseases.
SourceVIB (the Flanders Institute for Biotechnology)·JournalProceedings of the National Academy of Sciences·DateFeb 1, 2006
Researchers at the University of Iowa have discovered a new vaccination strategy that dramatically speeds up the immunization process by greatly reducing the required 'lag time' between initial vaccination and booster shots. This finding has important implications for immunotherapy, where developing immunity fast is critical.
SourceUniversity of Iowa·JournalNature Medicine·DateJun 12, 2005
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Researchers developed a vaccine targeting the local tumor environment to improve systemic anti-tumor immunity in melanoma patients. The study showed that the vaccine was safe and feasible, with partial responses and stable lesions observed in some patients.
SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 2, 2005
Researchers discovered that HIV-1 induces RNA interference in human cells but has a strategy to combat this defense. The protein Tat suppresses RNA silencing, helping the virus evade the cell's natural immune response.
Research from Imperial College London finds that bacterial communities mirror human social life, with close contacts more likely to share infections. Despite potential advantages like antibiotic resistance, the variation in pathogen strains' ability to spread is largely explained by chance.
SourceImperial College London·JournalProceedings of the National Academy of Sciences·DateFeb 3, 2005
Researchers found that periodic syphilis outbreaks are caused by a loss of immunity among those at risk of infection, not changes in sexual behavior. The study analyzed data from 68 US cities since the 1940s and found that rises and falls in disease cases followed a distinct 10-year cycle.
SourceImperial College London·JournalNature·DateJan 26, 2005
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Dr. Veillette's team identified a basic mechanism controlling antibody production in B lymphocytes, which are hyperactive in autoimmune diseases. This breakthrough provides new therapeutic targets for reducing attacks on organs like the pancreas and kidneys.
SourceInstitut de recherches cliniques de Montreal·JournalImmunity·DateNov 16, 2004
A study by Dr. Namanjeet Ahluwalia found that iron deficiency in older women can impair immune function, affecting T-cell and granulocyte responses to infection. The study included 72 healthy women over 60 living in rural Pennsylvania counties.
A new protein called VLA-1 enables the immune system to develop peripheral immunity by anchoring virus-killing cells to tissues in the lungs. This allows for an instant strike against flu viruses, potentially delivering a better defense against deadly strains like avian flu.
SourceUniversity of Rochester Medical Center·JournalImmunity·DateFeb 19, 2004
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Researchers are testing a new flu vaccine that delivers the vaccine in the nose to observe differences in immune system reactions. The study aims to improve immunity in the respiratory tract for all pathogens, with implications for biodefense.
Researchers have identified a new 'off switch' that limits the duration and intensity of T-cell activation, potentially treating autoimmune diseases. The IL-27 cytokine regulates immune cell growth and functions, offering a universal checkpoint for the immune system.
SourceUniversity of Pennsylvania·JournalImmunity·DateNov 25, 2003
Researchers discovered that repeated vaccinations provide short-term immunity boosts but do not sustain higher protection levels. Long-term antibody immunity can last throughout a person's lifetime, while T-cell immunity declines slowly over time.
SourceOregon Health & Science University·JournalNature Medicine·DateAug 17, 2003
Researchers found that smallpox vaccine-induced antibody immunity can last a person's entire life, while T-cell immunity declines slowly over time. The study also showed that repeated vaccinations have little impact on immunity levels.
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A study by Duke University Medical Center researchers found that older patients undergoing coronary artery bypass surgery are more likely to suffer cognitive decline due to lowered immunity to gram-negative bacteria. Cognitive decline was particularly pronounced in patients over 60, suggesting that boosting immunity may improve outcomes.
Researchers found that the absence of the SAP gene impairs the immune system's ability to recognize and react to infection, leading to impaired long-term antibody responses. The study has implications for vaccine development and may offer therapeutic benefits in treating X-linked lymphoproliferative disease.
SourceEmory University Health Sciences Center·JournalNature·DateJan 15, 2003
A new model developed by Emory University researchers suggests that targeted smallpox vaccinations could be an effective intervention against deliberate attacks. The study found that rapid response and targeted vaccination strategies can significantly reduce the spread of smallpox, particularly when pre-existing immunity is considered.
SourceEmory University Health Sciences Center·JournalScience·DateNov 14, 2002
Researchers suggest that vaccinating 'first responders' and allowing people to be vaccinated if they choose could increase the effectiveness of vaccination efforts. Targeted vaccination was found to prevent more cases per dose of vaccine, especially when delayed until multiple cases had been detected.
SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateNov 14, 2002
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Research ethics boards involved in industry-sponsored pharmaceutical trials are under investigation due to concerns of secrecy and lack of transparency. Industry sponsorship can create conflicts of interest, compromising the integrity of clinical trials and patient safety.
SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 13, 2002
Researchers found that humans can acquire immunity to hepatitis C virus, reducing the risk of persistent infection and its complications like liver cirrhosis and cancer. The study's findings add to growing evidence that vaccines could be used to protect against hepatitis C.
SourceJohns Hopkins Medicine·JournalThe Lancet·DateApr 25, 2002
A study by Dr. Jan Storek found that long-term bone-marrow and stem-cell transplant survivors can live normal lives without frequent infections, with immunity recovering to normal within 20 years. The researchers also discovered that transplanted hematopoietic cells remain functional for at least 20-30 years.
SourceFred Hutchinson Cancer Center·JournalBlood·DateDec 17, 2001
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The article provides expert guidance on infant feeding, highlighting the importance of individualized recommendations based on nutritional needs and growth patterns. The authors suggest a tailored approach to feeding, considering factors such as breast milk supplementation and introduction of solid foods.
SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateMay 1, 1998