A substance that prevents infection by inhibiting the growth of infectious agents. Disinfectant A substance that kills germs and/or viruses. The scalpels were soaked in disinfectant before the operation so disease wouldn't be spread. Antiseptic Of, or relating to antisepsis, or the use of antisep...
But what is not known is how the virus proceeds to destroy the body’s CD-4 cells that are needed to combat invading infectious agents. 43. ___. Although HIV kills the immune cells sent to kill the virus, there is widespread variation in the rate at which HIV infected people become...
cancer, as generally experienced, is infectious, many persons believe that because viruses are infectious agents they cannot possibly be of importance in human cancer. However, viruses can mutate (突变) and examples are known in which a virus that never kills its host can mutate to f[translate...
Adding a layer of oil or kerosene to water kills mosquito larvae and also prevents females from depositing eggs. The layer alters the surface tension of the water. Larvae can't get their breathing tube to the surface for air, so they suffocate. However, this method kills other animals in ...
About20% of samplesof pasteurized milk sold in stores were found to contain viral remnants of the virus, according to tests conducted earlier this year by government scientists. Pasteurization, or heat treatment, kills the bird flu virus and also bacteria such as E. co...
Louse flies, also known as keds or hippoboscid flies, are a family of insects that have long been overlooked in the scientific community. These parasites primarily target birds and mammals, and in some cases, have been known to transmit infectious agents to humans and domestic animals. However...
1- The bulb syringe should preferably be rinsed with boiled or distilled water before each use, as this significantly reduces the risk of transferring infectious agents through it if different people share it; boiling kills HIV, hepatitis A and B viruses, norovirus, Shigella, Shiga toxin-producing...
Bleach kills norovirus germs left on surfaces like toilets and sinks. Emergency medical care should be sought for infants and patients who have severe, persistent symptoms of viral gastroenteritis. Doctors can check for signs of dehydration and supply intravenous fluids when necessary. Blood and stool...
But what is not known is how the virus proceeds to destroy the body’s CD-4cells that are needed to combat invading infectious agents. How does HIV subvert the immune sys-tem?Although HIV kills the immune cells sent to kill the virus, there is widespread variation in the rate at which ...
If bacteriocins are carried on plasmids, then this becomes easier; if a cell coding for bacteriocins lyses, it kills all members of the neighbourhood that do not bear the plasmid gene, and thus favours individuals that carry the plasmid (as they also carry resistance to the bacteriocin). As...