< A-level Biology | Human Health and Disease. An infectious disease is a disease resulting from the presence of pathogens including viruses, bacteria, fungi, protozoa and multicellular parasites. These pathogens are able to cause disease in animals and/or plants.
What are the 4 types of infectious diseases?
- Common cold.
- Norovirus.
- Stomach flu.
- Hepatitis.
What are the 5 types of infectious diseases?
- Viral infections.
- Bacterial infections.
- Fungal infections.
- Parasitic infections.
What are the 6 infectious diseases?
- Chickenpox.
- Common cold.
- Diphtheria.
- E. coli.
- Giardiasis.
- HIV/AIDS.
- Infectious mononucleosis.
- Influenza (flu)
How does fungi cause disease a level biology?
Fungi can cause disease through: Replication of the fungus (fungal cells can invade tissues and disrupt their function) Immune response (by immune cells or antibodies) Competitive metabolism (consuming energy and nutrients intended for the host)
What is bacteria a level biology?
Bacteria are small, single-celled prokaryotes. Prokaryotic cells are much smaller than eukaryotic cells. They also differ from eukaryotic cells in having. A cytoplasm that lacks membrane-bound organelles.
What are the 4 main causes of infection?
- Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.
- Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
- Fungi.
- Parasites.
What are the 10 common diseases?
- Allergies.
- Colds and Flu.
- Conjunctivitis (“pink eye”)
- Diarrhea.
- Headaches.
- Mononucleosis.
- Stomach Aches.
What is the other name of infectious disease?
Communicable diseases, also known as infectious diseases or transmissible diseases, are illnesses that result from the infection, presence and growth of pathogenic (capable of causing disease) biologic agents in an individual human or other animal host.
What is the world’s most infectious disease?
Tuberculosis remains one of the world’s deadliest infectious diseases, second only to COVID-19, and drug resistant TB strains are still a major concern.
What are the 20 most common diseases?
- Diabetes.
- Depression.
- Anxiety.
- Hemorrhoid.
- Yeast infection.
- Lupus.
- Shingles.
- Psoriasis.
How are infectious diseases classified?
The groups of organisms that cause infectious diseases are categorized as bacteria, viruses, fungi, and parasites.
What is the most common disease?
According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population.
What are 5 diseases caused by fungi?
- Aspergillosis. About. Symptoms.
- Blastomycosis. About. Symptoms.
- Candidiasis. Candida infections of the mouth, throat, and esophagus. Vaginal candidiasis.
- Candida auris.
- Coccidioidomycosis. About. Symptoms.
- C. neoformans Infection. About.
- C. gattii Infection.
- Fungal Eye Infections. About.
What are 5 diseases caused by fungi in plants?
On the other hand, pathogenic fungi cause plant diseases such as anthracnose, leaf spot, rust, wilt, blight, coils, scab, gall, canker, damping-off, root rot, mildew, and dieback. Systemic foliar pathogens are major causes for yield and commercial crop losses and diminished crop quality [2].
What are two diseases caused by fungi?
Aspergillus infection, Athlete’s foot, Jock itch, Ringworm, Coccidioidomycosis, Sporotrichosis, valley fever, histoplasmosis are the few of the many deadly diseases caused by fungi.
What are the 4 types of bacteria?
Bacteria can be classified based on their shape into bacillus, coccus, vibrio and spirillum.
What are the 3 main types of bacteria?
- Spherical: Bacteria shaped like a ball are called cocci, and a single bacterium is a coccus. Examples include the streptococcus group, responsible for “strep throat.”
- Rod-shaped: These are known as bacilli (singular bacillus).
- Spiral: These are known as spirilla (singular spirillus).
What are the 3 basic shapes of bacteria?
The three basic shapes of bacteria are bacillus (rod-shaped), coccus (spherical-shaped), and spirillum (spiral-shaped).
What are the 2 types of infections?
As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren’t effective against viruses.
What are the stages of infection?
- Incubation. Share on Pinterest Luis Alvarez/Getty Images.
- Prodromal.
- Illness.
- Decline.
- Convalescence.
- COVID-19.
- Influenza (the flu)
- HIV, which can lead to AIDS.
- Meningitis (there is also bacterial meningitis)
- Pneumonia (there is also bacterial pneumonia)
- Human papillomavirus (HPV)
- Herpes.
- Rotavirus.
What are the 7 killer diseases?
- Overview.
- Ischemic heart disease, or coronary artery disease.
- Stroke.
- Lower respiratory infections.
- Chronic obstructive pulmonary disease.
- Trachea, bronchus, and lung cancers.
- Diabetes mellitus.
- Alzheimer’s disease and other dementias.
What are the five signs of an infection?
- Fever (this is sometimes the only sign of an infection).
- Chills and sweats.
- Change in cough or a new cough.
- Sore throat or new mouth sore.
- Shortness of breath.
- Nasal congestion.
- Stiff neck.
- Burning or pain with urination.
What are the two ways to treat an infectious disease?
Kill the cause of the disease: Use medicines that can kill the pathogens. Each microbe undergoes some specific biochemical life process which helps them to survive. The intake of certain drugs that block these biochemical processes can help in killing the microorganism causing the disease.