Bacilli

Bacillus Anthracis Cheyenne Wright Iowa Western Community College Heather Babka, Instructor Microbiology 8 February 2017 Bacillus Anthracis: 1. Introduction a) Bacillus anthracis is a gram-positive, rod-shaped, aerobic bacterium, that presents its self in long chains (Todar). It is 1 × 2 μm in size and contains no flagella or pilli (Spencer). Although, B. anthracis is non-motile, it does undergo the process of sporulation (Spencer). These spores are typically oval shaped and found in soil

Introduction Anthrax is a disease of herbivores and commonly infects the human through direct contact with the infected animals or ingests contaminated animal products. The causative agent of anthrax is Bacillus anthracis, rod-shaped, gram-positive bacteria and able to form endospore. [1] The spores of bacillus anthracis could affect both humans and animals through different routes and lead to a variety of clinical significant. Cutaneous, inhalational and gastrointestinal anthrax are the most well-known

Origin and nature The earliest appearance of Anthrax occurred around 700 BC mostly affecting cattle, sheep, horses, and oxen. The people of Egypt and Mesopotamia at the time called it the 5th plague and the name Anthrax derives from the word coal, similar to the black skin leisures it produces. The first clinical cases of Anthrax were described around 1752 and 1769 by Maret and Fournier respectively (Center for Disease Control and Prevention, 2016). Scientist Robert Koch was the first to study

Results Observing under 1000X magnification, the gram stain depicts pink bacilli, as seen in Figure 1. Figure 2 depicts the growth of a brown bacteria on a MacConkey Agar plate. Figure 3 depicts the growth of a similarly brown bacteria surrounded by a very thin clear area on a blood agar plate. As seen in Figure 4, the slant of gram-negative isolate appears mainly clear, with a slight green tint. Figure 5 shows the methyl red test, which produced no color change. Figure 6 shows the Voges-proskauer

has a gram-negative coccobacillus, that grows well on the blood agar as also on the MacConkey agar. I concluded that the organism that she is infected with is the Pasteurella Multocida. According to my research this organism is gran negative cocci bacilli, it is a natural inhabitant of the skin, digestive tract and oral cavity and respiratory tract of cat. As

Cocci has a spherical shape, Bacilli has more of a rod shape, and Spirillum has a spiral shape. They all consist of different gram stains such as Cocci can be gram positive in young organisms and might be gram negative in older organisms. Spirillum is gram negative and Bacilli is gram positive. Group B- All of Group B consist of Staphylococcus aureus and Clostridium botulism. Staphylococcus aureus is a small-round shape organism that is gram positive. Clostridium botulism is a rod shape and gram

Introduction: Tuberculosis is a disease caused by the bacteria tubercle bacilli (NSW Health 2014). It is one of mankind’s oldest infections and has plagued humans throughout recorded and archaeological history (Encyclopaedia Britannica 2014). Tuberculosis comes in an infectious and disease form. The infectious form is the result of contraction of TB bacteria that remains dormant and is neither symptomatic nor contagious. The disease form of TB is caused by active TB bacteria and results in the contagious

Chapter One: Introduction Tuberculosis (TB) is a airborne and contagious-infectious disease caused by Mycobacterium tuberculosis bacilli, usually establishes its infection in the lungs and known as pulmonary tuberculosis also can affect other sites and known as extrapulmonary tuberculosis (Rodrigo,2006; Comas,2009). Human Tuberculosis (TB) is a major global public health problem for both developed and developing countries , is the second cause of death in worldwide, after the human immunodeficiency

Tuberculosis, an airborne disease, infects people through inhalation of mycobacterium tuberculosis, which is called droplet infection, and is potentially fatal to its victims. (Muller, 2011). Mycobacterium tuberculosis is the causative agent for tuberculosis. There are 19 registered types of mycobacterium that are associated with tuberculosis, which are identified and differentiated by culture of the organism and the disease kills around 1.7 million people each year. Tuberculosis is primarily

Greenwood et al., (2002), the lung is often the location of initial infection. The tubercle bacilli, consumed by macrophages in the alveolar, replicate forming the initial lesion called the Ghon focus. The resulting primary complex formed includes the Ghon focus and enlarged hilar lymph nodes. The nodes contain further Ghon foci which develop due to bacilli being transported by phagocytic cells. Additionally, bacilli are propagated to many organs, tissues and other parts of the lung by the blood and lymph