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Immune System
This category is for questions about how our bodies identify and fight off disease, infection or pathogens through specialized cells, tissues and organs. The system that does this is called the immune system. It produces antibodies which recognize intruders and neutralizes potentially pathogenic organisms or substances.
4,548 Questions
What does harmless pathogen do?
A harmless pathogen does not cause harm or illness to its host. It may colonize the body without causing an infection or may cause a mild infection that resolves on its own. Some harmless pathogens can even provide benefits to the host, such as protection against more harmful pathogens.
What is a Pathogenic endospore forming bacteria that is difficult to kill?
Bacillus anthracis is a pathogenic endospore forming bacteria that is difficult to kill due to its ability to form spores that are resistant to heat, chemicals, and radiation. This makes it a challenge to eradicate in the environment and in infected individuals.
These are macrophages, a type of immune cell that engulfs and digests pathogens and debris. They are found in tissues throughout the body and play a critical role in the immune response by recognizing and eliminating foreign invaders.
What category of medicine is used to treat pathogens or disease-causing microorganisms?
Antimicrobial medicine, such as antibiotics, antivirals, and antifungals, is used to treat pathogens or disease-causing microorganisms. These medications target specific types of microorganisms to help the body fight off infections.
What pathogens cause meningitis?
Neisseria meningitidis, a gram negative cocci is one of the most prevalent causes of meningitis. However, you should note that meningitis can be caused by other pathogens which penetrate the brain and cause swelling of the outermost brain layer. This leads to hemorrhaging.
What is the risk associated with vaccines prepared from dead or weakened pathogenic microbes?
In the US there are two types of vaccines approved for the seasonal flu, a vaccine for injection into the muscle and a vaccine mist for spray into the nose. The side effects are different depending on which you use. The mist is only available to healthy people age 2 - 49. The shots are approved for use in anyone 6 months old and over unless there are allergies that prevent their use. Infants under 6 months old can not be vaccinated until they are older.
The shots use a dead virus and the nasal mist is made with attenuated (weakened) viruses that can't make you sick if you have an otherwise normal immune system.
They are made exactly like they have been made for decades with an exceptionally good track record of low incidence of adverse effects or allergic reactions.
Life-threatening allergic reactions to vaccines are very rare. If they do occur, it is usually within a few minutes to a few hours after the vaccination. It is recommended that you report to the nurse before you receive the vaccination if you have any medication or food allergies (especially to eggs or chicken).
The most commonly reported side effects of thenasal mist include:
- Some children and adolescents 2-17 years of age have reported mild reactions, including: runny nose, nasal congestion or cough; fever; headache and muscle aches; wheezing; abdominal pain or occasional vomiting or diarrhea.
- Some adults 18-49 years of age have reported: runny nose or nasal congestion; sore throat; cough, chills, tiredness/weakness; headache.
The most frequently reported side effects of the flu shots are:
- Mild hypersensitivity reactions (such as rash).
- Local reactions at the injection site such as tenderness, redness, swelling, pain or soreness.
- The most common systemic adverse reactions were headache, malaise, and muscle aches. Fever is rare, but a very mild fever is possible the first day or two.
In 1976, an earlier type of inactivated swine flu vaccine was associated with cases of Guillain-Barré Syndrome (GBS). There has not been any link to GBS with the use of the nasal mists.
The shots are made an entirely different way now than they were made in the 1970's. The new way has been proven for over 30 years.
We don't have your statements so can't answer your question.
Which is not a type of leukocyte erythocyte monocyte or basophil?
Erythrocyte is not a type of leukocyte; it is a type of red blood cell responsible for carrying oxygen. Leukocytes include monocytes and basophils, which are different types of white blood cells involved in the immune response.
Phagocytes report to an injured area because the are attracted by?
chemical signals released by damaged cells, such as cytokines and chemokines. These signals act as a beacon for phagocytes, directing them to the site of injury to help clear away debris and fight off infections.
Define the terms antibody immunoglobulin and gamma-globulin?
Gamma globulins are a class of globulins, identified by their position after serum protein electrophoresis. The most significant gamma globulins are immunoglobulins ("Igs"), more commonly known as antibodies, although some Igs are not gamma globulins, and some gamma globulins are not Igs
Read more: gamma-globulin
The immune system's ability to recognize and resist specific foreign substances is determined by the unique set of proteins on the surface of cells called major histocompatibility complex (MHC) molecules. MHC molecules present antigens to immune cells, which stimulate the immune response. The immune system can only respond to antigens that are recognized by MHC molecules.
Which pathogen has no treatment?
Prion diseases, such as Creutzfeldt-Jakob disease, currently have no known treatment that can effectively cure or stop the progression of the disease. Management focuses on symptom relief and supportive care for affected individuals.
What is a leukocyte that releases histamine?
Both Heparin and Histamine are released by basophils and mast cells. These cells are very similar, but mast cells are found on mucous membranes (connective tissue) and basophils are white blood cells that travel in the blood in the circulatory system.
What pathogens can cause arthritis?
Pathogens that can cause arthritis include bacteria like Streptococcus, Neisseria gonorrhoeae, and Borrelia burgdorferi (Lyme disease), as well as viruses like hepatitis B, hepatitis C, and chikungunya virus. These pathogens can trigger inflammation in the joints leading to arthritis symptoms.
Leukocytes are stained and counted under a microscope to see numbers of mature and immature forms?
Staining leukocytes helps differentiate between different types of white blood cells, such as neutrophils, lymphocytes, monocytes, eosinophils, and basophils. Counting these cells allows for the assessment of their relative proportions and absolute numbers, which can provide valuable information about a person's immune system function and potential underlying health conditions. Identifying both mature and immature forms of leukocytes can also aid in diagnosing specific disorders, such as leukemia.
What immunoglobulin class provides specific immunity at the level of the mucous membranes?
No immunoglobulins (Igs) provide that! That is because Igs or antibodies are in blood tissue and circulated all over blood and immune system. The mucous membrane and skin are actually functioning as a physical barrier preventing invading microbes.
What are pathogens of the eye?
Some common pathogens that can infect the eye include bacteria (such as Staphylococcus and Streptococcus), viruses (such as herpes simplex virus and adenovirus), fungi (such as Candida and Aspergillus), and parasites (such as Acanthamoeba). These pathogens can cause a variety of eye infections, such as conjunctivitis, keratitis, and endophthalmitis. Proper hygiene, avoiding contact with infected individuals, and seeking prompt medical treatment can help prevent and manage eye infections caused by pathogens.
What is the percent of each type of leukocyte is considered?
The typical distribution of leukocytes in the blood is approximately 60-70% neutrophils, 20-25% lymphocytes, 3-8% monocytes, 2-4% eosinophils, and 0.5-1% basophils. These percentages can vary depending on factors such as age, infection, and other conditions.
Are most diseases are caused by pathogen that are very large?
No, most diseases are caused by pathogens that are microscopic, such as bacteria, viruses, and fungi. These pathogens can lead to various illnesses and infections in humans and animals.
CD3 cells are a type of T lymphocyte that play a crucial role in the immune response by recognizing and attacking foreign invaders like viruses and bacteria. These cells express the CD3 receptor on their surface, which helps them recognize antigens presented by other cells in the immune response. CD3 cells also help regulate the immune response and maintain immune tolerance.
What is the scientific name of amoebic dysentery?
its Entamoeba Histolytica, im doing a project on it so that's how i no
What structure contributes to the ability of pathogenic bacteria to cause disease?
Capsules (one of the most important virulence factors ( E. coli O157:H7, MRSA, etc.)), lipopolysacharrides in the case of gram negative bacteria, exotoxins like those of clostridium (botulism), hemolytic protein complexes excreted by Staph. aureus, and shiga toxin for shigella, mobility also factor in (Burrelia burgdorferi's endo flagella enables it to corkscrew between your cells creating the radiating pattern associated with Lyme's disease).Type your answer here...
Are bacteria viruses fungi and protists the major human phagocytes?
No, these are not phagocytes. Phagocytes are a type of white blood cell in humans, such as neutrophils, macrophages, and dendritic cells, that are responsible for engulfing and destroying pathogens like bacteria, viruses, fungi, and protists. These foreign microorganisms are not phagocytes themselves.
What is the spreading bacteria or other pathogens from one food to another?
Cross-contamination is the transfer of harmful bacteria or pathogens from one food to another. This can occur when raw foods come in contact with cooked or ready-to-eat foods, or when contaminated utensils, cutting boards, or surfaces are not properly cleaned before being used with a different food. Proper food handling practices, like using separate cutting boards for raw meat and ready-to-eat foods, can help prevent cross-contamination.
