Which one of the following produces the most potent exotoxin?
Exotoxins vary in their cytotoxic potency, with the clostridial neurotoxins being the most potent exotoxins of humans.
Which of the following causes a disease characterized by the catarrhal paroxysmal and convalescent stages?
Pertussis is a highly contagious acute respiratory disease caused by the bacteria Bordetella pertussis. This disease has 3 stages: catarrhal, paroxysmal, and convalescent. The symptoms of the catarrhal stage are mild and may go unnoticed.
Which of the following bacterial diseases of the respiratory system can be prevented by vaccine?
In the United States, vaccines can help prevent infection by some of the bacteria and viruses that can cause pneumonia:COVID-19.Haemophilus influenzae type b (Hib)Influenza (flu)Measles.Pertussis (whooping cough)Pneumococcal.Varicella (chickenpox)
Which one of the following is an opportunistic pathogen?
Examples are Candida albicans (an opportunistic agent of oral and genital infections in humans), Staphylococcus aureus (normal flora on human skin but may cause infections), Pseudomonas aeruginosa, (may cause burn and external ear infections). Variant: (opportunistic) pathogene.
What is convalescent stage?
Convalescence is the period in which the body recovers from a serious illness, injury or surgery. Changes to your lifestyle may be needed to make sure the body has enough time and rest to allow a complete recovery.
What is paroxysmal coughing?
Paroxysmal coughing involves frequent and violent coughing that can make it hard for a person to breathe. Coughing is an automatic reflex that helps your body get rid of extra mucus, bacteria, and other foreign substances.
Which of these lower respiratory diseases should be treated with antibiotics?
The mainstay of treatment for the most important bacterial lower respiratory tract infections, namely acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and community-acquired pneumonia (CAP), is the use of antibiotics.Jul 23, 2018
When do you need antibiotics for upper respiratory infection?
Antibiotic use should be reserved for moderate symptoms that are not improving after 10 days or that worsen after five to seven days, and severe symptoms. When to treat with an antibiotic: S. pyogenes (group A streptococcus infection). Symptoms of sore throat, fever, headache.Sep 15, 2006
Which of the following respiratory diseases is caused by bacteria?
Bacteria. The most common type of bacterial pneumonia is called pneumococcal pneumonia. Pneumococcal pneumonia is caused by the Streptococcus pneumoniae germ that normally lives in the upper respiratory tract. It infects over 900,000 Americans every year.Dec 14, 2021
What are opportunistic bacterial pathogens?
Opportunistic pathogens are a group of microorganisms that do not usually infect healthy hosts but produce infections in hospitals, to immunodepressed persons or those patients presenting underlying diseases as cystic fibrosis, which favors infection (Koch and Hoiby, 1993).May 20, 2014
Is C Diff an opportunistic pathogen?
Clostridium difficile is an opportunistic pathogen that causes a spectrum of disease ranging from antibiotic-associated diarrhea to pseudomembranous colitis. Although the disease was first described in 1893, the etiologic agent was not isolated and identified until 1978. Since clinical and pathological features of C.
What are the most common opportunistic infections?
What are Some of the Most Common Opportunistic Infections?Herpes simplex virus 1 (HSV-1) infection—a viral infection that can cause sores on the lips and mouth.Salmonella infection—a bacterial infection that affects the intestines.More items...•Jan 14, 2022