For many infectious diseases, a single bout of the illness protects a person against contracting it again. Sometimes, the infecting microbe persists in the body long after symptoms resolve. Now, researchers studying the tropical parasite Leishmania have found a clue to explain the link between long-term immunity and long-term infection: The parasite is constantly multiplying and being killed by immune cells, keeping the immune system alert and prepared for any new encounters with the parasite.
When people in a relationships fees jealous about the attention their partners are receiving, they are more likely to purchase eye-grabbing products. This is an attempt to recapture the attention of their partners.
Before infecting humans, tick-borne bacteria or viruses first have to get past a tick's defenses to colonize it. How this occurs is not well understood. To investigate, Yale researchers studied a model of the second-most-common tick-borne infection in the United States, human granulocytic anaplasmosis, which can cause headaches, muscle pain, and even death.
A new study offers a recipe for parents who want smarter kids: maternal micronutrient supplements during pregnancy, early life nurturing, happy moms, and educated parents.
Massachusetts General Hospital investigators have identified a protein that may play an essential role in maintaining a population of tumor-initiating cells -- treatment-resistant cells responsible for cancer recurrence and metastasis -- in breast cancer, as well as a compound that appears to reduce the molecule's ability to protect TICs from the effects of chemotherapy.
Opinions differ when it comes to how sick is too sick to go to school, or the importance of sick day consequences such as parents missing work or kids missing tests, according to a new national poll.
Modafinil, a drug used to treat narcolepsy -- excessive daytime sleepiness -- can improve memory in patients recovering from depression, according to new research from the University of Cambridge. The findings, published today in the journal Biological Psychiatry: CNNI, result from a randomized, double-blind, placebo-controlled study and offer hope of a treatment for some of the cognitive symptoms of depression.
The goal of eliminating malaria in countries like India could be more achievable if mosquito-control efforts take into account the relationship between mosquitoes and cattle, according to an international team of researchers.
An international collaboration led by clinical researchers at the Wellcome Trust Sanger Institute has shown proof-of-concept that truly personalized therapy will be possible in the future for people with cancer. Details of how a knowledge bank could be used to find the best treatment option for people with acute myeloid leukemia are published today in Nature Genetics.
A family of highly drug-resistant and potentially deadly bacteria may be spreading more widely -- and more stealthily -- than previously thought, according to a new study from Harvard T.H. Chan School of Public Health and the Broad Institute of MIT and Harvard.