Infection and response

What are pathogens?

Pathogens are organisms that cause disease, including bacteria, viruses, fungi, and parasites.

What are the types of pathogens?

The main types of pathogens are bacteria, viruses, fungi, and protozoa.

What are qualities of bacteria?

Bacteria are single-celled organisms that can reproduce rapidly, may have beneficial or harmful effects, and can be treated with antibiotics.

What are qualities of viruses?

Viruses are much smaller than bacteria, consist of a core of genetic material surrounded by a protein coat, and require a host cell to reproduce.

What is a placebo?

A placebo is an inactive substance or treatment that has no therapeutic effect used in clinical trials to test the efficacy of new drugs.

What is a double-blind trial?

A double-blind trial is a study in which neither the participants nor the researchers know who is receiving the active treatment or the placebo to prevent bias.

What is vaccination?

Vaccination is the process of stimulating the immune system to protect against specific infections by introducing a harmless form of a pathogen.

What is the vaccination process?

The vaccination process typically involves administering a vaccine, which may contain live attenuated or inactivated pathogens, to invoke an immune response.

What are white blood cells?

White blood cells are part of the immune system and help the body fight infection by identifying and attacking pathogens.

What are the benefits of vaccination?

Vaccination can prevent disease outbreaks, provide herd immunity, and reduce healthcare costs by minimizing illness and treatment.

Why is drug testing important?

Drug testing is essential to ensure efficacy, safety, correct dosage, and to identify any potential side effects.

What is bias in drug testing?

Bias in drug testing occurs when the design or reporting of a study influences the outcomes and results, leading to inaccurate conclusions.

How is effective dosage determined?

Effective dosage is determined through clinical trials comparing different dosages to find the minimum amount needed for therapeutic effects without adverse effects.

What role do white blood cells have in the immune response?

White blood cells identify, attack, and destroy pathogens, and they also help to remember past infections to build immunity.

How do vaccines contribute to herd immunity?

Vaccines contribute to herd immunity by reducing the overall prevalence of disease in a population, protecting those who cannot be vaccinated.