Why are most unimmunized children protected against diseases such as measles?Choose one: A.  They lack the host cells for viral replication. B.  They are protected by herd immunity. C.  They have developed immunity toward the measles virus. D.  They still have circulating maternal antibodies.

Q: Which statement is true of autoimmunity? a. It involves misshapen antibodies. b. It refers to…

A: Immunity can be defined as the ability of an organism to fight against infections caused by a…

Q: in your own understanding why is that allergy is dangerous and can be cause of death?

A: Allergy is an exaggerated immune response against a particular foreign substance when entered in the…

Q: How does HIV (human immunodeficiency virus) lead to AIDS (acquired immune deficiency syndrome)/lead…

A: Human immunodeficiency viruses causes AIDS.This is the condition where gradual failure of immune…

Q: Vaccines are biological preparations that establishes or improves immunity to a particular disease.…

A: Vaccines are biological preparation that provides acquired immunity. It mainly used to treat…

Q: What are structures, together with the functions, of the human body immune system?

A: The immune system is a network of biological processes that protects an organism from diseases. It…

Q: Why are monitoring virus loads and T-cell counts important to those who are HIV positive?

A: HIV or human immunodeficiency viruses are the two lentiviral species that generally cause infection…

Q: Effective vaccines have been developed against diseases such as hepatitis B,smallpox, polio,…

A: The agents which stimulate the immune system and provide protection against infections/diseases are…

Q: Explain how vaccines are used to teach the immune system.

A: Introduction The vaccine is a substance that is used to trigger the various components of the immune…

Q: How does HIV confound the human immune system?

A: The main purpose of HIV is to make copies of itself repeatedly as many times as the virus could, but…

Q: When we get sick we trust our immune system to protect us, but what happens when that system goes…

A: The fundamental elements of the immune system are white blood cells, antibodies, the complement…

Q: How do vaccines protect us from diseases?  Which cells in the immune system become activated after…

A: VACCINES It is basically the living of inactivated disease causing infections administered into our…

Q: Why we do not use antibodies against viruses?

A: In order to survive and replicate, a virus infects a person (host). The immune system's cells can't…

Q: ____________ are suspensions of killed or live germs which is employed to induce the production of…

A: Among the given options, option (a) is the most appropriate.It explains that the vaccines are…

Q: Why might an HIV/AIDS vaccine actually give some people a false sense of security?

A: Vaccination is the process by which vaccines are provided to individuals with an aim of stimulating…

Q: Which condition is not an autoimmune disease?a. multiple sclerosis c. systemic lupus erythematosisb.…

A: The immune system is responsible for protecting the body from foreign pathogens. Immune system fight…

Q: How would a baby benefit from a nursing mother receiving a vaccine? Make sure you include at least…

A: When a mother feeds her kid with her own milk then she is called as nursing mother. Lots of…

Q: What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV…

A: CD4 cells are T helper lymphocytes with receptor proteins on their plasma membrane. CD4 is the…

Q: How does the immune system remember the previous viruses that it had fought?

A: It is made up of special organs,  cells and chemicals that fight infection.  The main parts of…

Q: Visit this website (http://openstaxcollege.org/l/immunecells) to learn about the many different cell…

A: Role of dendritic cell in infection by HIV Dendritic cells belong to the heterogeneous family of…

Q: which of the following describes a potential property of the variable region released? a-activation…

A: An "antibody" is also characterized as an "immunoglobulin (Ig)", is a big, Y-shaped protein that…

Q: What are the roles of the innate immune system? Select all that apply.   A. identity self vs.…

A: Pathogens are disease-causing organisms that can cause humans to become ill or die depending on the…

Q: What are CD4 lymphocytes?What is the relationshipbetween these cells and HIV?How does HIV replicate?

A: INTRODUCTION:- CD4 cells are white blood cells called T lymphocytes or T cells. These cells plays…

Q: How does HIV defeat the human immune system?

A: HIV stands for Human Immuino deficiency Virus and upon infecting human causes AIDS (Acquired Immuino…

Q: Explain HIV is so difficult to treat. Why antiviral medication is a cocktail/mixture of different…

A: Ans. HIV-Hummanimmuni deficiency virus. It leads to AIDS and attacks the body's immune system.…

Q: What would you say to a friend that mentioned that they cannot take X antibiotic because they have…

A: * Antibiotics are kind of medications that stops the growth or destroys microorganisms. *…

Q: person with AIDS is likely to develop infectious disease because the virus that causes AIDS ?

A: HIV (Human immunodeficiency virus) is a single-stranded RNA virus that infects humans and develops…

Q: How do vaccines protect against common childhood illnesses such as chicken pox, measles, and mumps?

A: Nutrient imbalance and pathogen attack are the primary causes of disease occurrence. The body is…

Q: Is it possible for the immune system to eliminate the viruses without B cells? Why or why not

A: Innate or natural immunity is present from birth and comprises of several non-specific components.…

Q: Based on the history of vaccines, what are some of the types that were the most effective in…

A: The production of antibodies is stimulated by a substance known as the vaccine. It provides…

Q: In the text, the author describes the benefits of receiving vaccines. Are there disadvantages? Why…

A: Disadvantage of vaccines When few people are immunized the number of cases of disease increases.…

Q: What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected…

A: Aids js acquired immuno deficiency syndrome which is caused by the HIV virus (human immuno…

Q: The primary function of the immune system is to protect the host from invasion by foreign organisms.…

A: A complex network of cells, tissues, and organs that work collectively to protect the body and fight…

Q: Why does vaccination provide long-lasting protection against a disease, while gamma globulin (IgG)…

A: Vaccination: It s a process  that provides active acquired immunity against a particular infectious…

Q: Why is there a need for dogs to be vaccinated ?

A: Question: Why is there a need for dogs to be vaccinated? Introduction: Usually, dogs and even other…

Q: A child was bitten by a dog suspected to have contracted rabies. As a response by the hospital…

A: Artificial active immunity is in which the individual is exposed to an antigen to induce the…

Q: nnate immunity:   Question 1 options:   A)  is slower than adaptive immunity in responding to…

A: The immune system works like a shield to our body by capturing and removing all the pathogens which…

Q: Which immune cells circulate in the body, providing immunity by producing antibodies? A. T-cells, B.…

A: Answer C. B-cells

Q: Breastfed infants typically are resistant to disease because of ________. a. active immunity b.…

A: Antibodies are proteins that the immune system makes from immunoglobulin protein stored in the body.…

Q: The goal of vaccinations is to trick the body into generating which types of cells that recognize…

A: Introduction :-Vaccines are the biological preparation that provides Immunity against a particular…

Q: Is it possible for the immune system to eliminate the viruses without T cells? Why or why not?

A: Cell-mediated immunity is defined as the type of immune response which  is mediated by the T-cells…

Q: Herd immunity means that the entire population (not just those who are vaccinated) are protected…

A: Herd immunity is the form of immunity where individuals who are not even vaccinated stay immune from…

Q: A benefit/benefits of vaccination is that a child will develop antibodies through natural immunity…

A: Vaccinations and Immunizations started in the 18th century, with the Smallpox Vaccination, created…

Q: If the patient's mother had previously vaccinated her son against chickenpox, what form of immunity…

A: Immunity is the ability of the body to fight against different microorganism. They are of 2 types -…

Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.