Introduction The role of public health in our society cannot be underestimated. The main goal of public health is to prevent and control diseases with the aim of promoting health. Humans contribute to this health promotion. However, human actions are also responsible to some detrimental health effects. Human behavior through habitat modification has led to the emergence of infectious diseases
I am writing this research paper on the differences and similarities between bacteria, viruses, and prions. In this paper I will define each of the subjects that I am comparing and tell and show you how they are different and how they are similar. I will also tell you about their structure, how they reproduce, and a disease that is caused by each of them. I will first start with defining all three subjects. Bacteria are known as large groups of unicellular microorganism that have cell walls but lack
quickly the viri convince the cell, via complex chemical codes to admit the viri into its life blood, the cytoplasm. Soon they would turn this doomed cell into a virus nursery, churning out countless clones of the virus that converted the original cell. I now must resign myself to the fact that I have somehow come into contact with a virus and it has started to multiply in my body. By now the symptoms are undeniable and all encompassing. I have the flu. Viral infections are caused by a host organism
rodents or arthropods, and in some viruses, such as the Ebola virus, the natural host is not known. All forms of viral hemorrhagic fever begin with fever and muscle aches, and depending on the particular virus, the disease can progress until the patient becomes deathly ill with respiratory problems, severe bleeding, kidney problems, and shock. The severity of these diseases can range from a mild illness to death (CDC I). The Ebola virus is a member of a family of RNA (ribonucleic acid) viruses
What if there was a way to cure cancer, change skin color, or increase athleticism. Gene therapy promises to do all this and more. It aims to correct genetic abnormalities by inserting therapeutic genes into the body. Gene therapy is a fairly new practice, but it is not safe or reliable enough to become a standard treatment. One must also consider the ethical questions that arise. Gene therapy offers undeniable benefits, but the risks it poses need to be addressed before this technology can become
1. 8. Dengue Virus The causative agent of the dengue disease is the dengue virus (DENV), a group of four flaviviruses that are closely related but antigenically distinct. They are hypothesised to have evolved independently from ancestral sylvatic viruses between 100-1,500 years ago (Wang et al., 2000). The four groups are known as serotypes and denoted as dengue virus type 1 (DENV-1), dengue virus type 2 (DENV-2), dengue virus type 3 (DENV-3) and dengue virus type 4 (DENV-4). 1. 8. 1. Taxonomy There
few weeks. This is not a result of a stroke or transient ischemic attack. This is referred to as a (TIA). Palsy simply means weakness or paralysis, What causes Bell’s palsy is not clear, but some experts believe it is linked to the herpes simplex virus, that causes cold sores or Influenza. Many health problems can cause weakness or paralysis of the face. This is a form of cranial mononeuropathy VII, which is the 7th cranial facial nerve and the nerve controls the movement of the face. Bell’s palsy
Latency is defined as the silent persistence of the virus in the body, not detectable by conventional virological procedures (1). Infectious virus is only recovered from latently infected organs by prolonged culture of organ cells or co-culture of these cells with susceptible cells (5). Therefore, no infectious virus is reisolated in cell cultures inoculated with a triturated organ latently infected. Latency is the property shared by some viruses which allows them to persist indefinitely in their
this a construct is created. A construct contains a start switch and a stop switch called the promoter and the terminator. There are very few constructs in plant modification; very famous one called the cauliflower mosic virus and is found in most transgenic modified plants. The virus is inserted with a ‘gun’ through the thick cell walls of the plant. It contains the new construct as a gene and as it affects its host cell the plant 's’ own DNA changes. One famously used gene addition is one that increases
ASSIGNMENT # 1: GENERAL PRINCIPLES OF MICROBIOLOGY 1. Describe the components of the bacterial cell envelope and the primary function of each. The innermost layer of the bacteria cell envelope is the cell membrane. It is a typical phospholipid bilayer, as is found in animal cells. The primary function of the cell membrane is energy production and active transport. The next layer is the cell wall. It is made of N-acetyl glucosamine and N-acetyl muramic acid. Amino acids keep the cell wall together
I am going to explore the extent to which gene editing should advance to; and how gene editing could possibly provide an alternative meaning to life for those inflicted with almost incurable diseases. Abstract Within the modern day, technological advances have definitely improved from what they used to be, especially in fields such as medicine. Gene editing is one of the latest advances that shows some promise in regards to what it does. These medical advances are quite beneficial to those who have
Although parasitology had its origins in the zoologic sciences, the more précising term "Medical parasitology" would refer to the study of a group of pathogens classified as eukaryotes, under the Knigdom of animalia, that cause a wide range of diseases in the human beings. Human parasites can be generally divided into three broad categories; parasitic protozoa, parasitic helminths (worms), and arthropods that either cause a disease directly or act as vectors or vehicles for transmission of various
called the kissing disease. The virus that causes mono is called Epstein-Barr virus (EBV), which is one of the multiple human herpes viruses that are carried asymptomatically by most people. Primary infection is particularly usual in childhood and establishes a lifelong carrier state where the virus remains latent. The EBV replicates frequently in the oropharyngeal epithelial cells and circulating B-lymphocytes, since they are the principal targets of the virus. Mononucleosis is mainly a disease
Peptide Nucleic Acids (PNAs) are a class of compounds that mimic DNA and bind complementary to single strand DNA (ssDNA) and RNA. Currently, the only PNAs observed on Earth are created artificially. However, it has been hypothesized that PNAs were precursors to DNA and RNA. PNAs are important to the field of astrobiology because they may be an alternative information molecule that life elsewhere in the galaxy uses. Information molecules are molecules that all life forms, from viruses to humans,
fluid filled bumps that can break open and can cause bleeding. There are 2 types of herpes; HSV-1 & HSV-2. Herpes simplex virus(HSV) is easily transmitted and is highly contagious. According to article “Genital warts and genital herpes: a public health perspective.” by Edwards M., nearly 80% of people who are infected are unaware of the viral takeover of their immune system. The virus can be activated at any time, causing an outbreak of herpes. Herpes can be transmitted physical and through other bodily
clear understanding of the virus which has worldwide effects. Also, a clear understanding of research and surveillance data conducted and collected by governmental agency, will be understood. One will grasp preventive or protective methods from what can end up becoming a deadly virus. One will comprehend governmental findings and investigations. The signs and symptoms will become more easily recognizable. Knowledge will be gained of treatments used to combat the virus to ensure little to no fatalities
Breaking News! A virus spreads like wildfire in the United States. Symptoms include tears, tantrums, and fits. This syndrome has been directly correlated with the participation of child beauty pageants. The Princess Syndrome still is being researched heavily. However, it is easy to identify. If you see a girl under the age of 10 with bleached hair, waxed eyebrows, fake nails, fake teeth (also known as flippers), an artificial tan, and/or provocative dresses she is most likely infected. Extreme beauty
Advanced technology affords many benefits to human beings, but it also provides instruments of mass destruction. For example, advanced biological technology may provide cures for illnesses but it also provides instruments of biological terrorism. When war involves these microscopic, deadly, biological agents, it takes on a new and frightening dimension. Human beings harnessing the power of bacteria to kill large quantities of people sounds like science fiction. Unfortunately, we now hear about use
The common cold is one of the most prevalent illnesses worldwide. It is caused by a virus that inflames the membranes in the lining of the nose and throat, colds can be the result of more than 200 different viruses [10].The antibiotics don't work against any infections caused by viruses [11]. They are a powerful medicines that fight bacterial infections [12]. Antibiotics were first used to treat serious infections in the 1940s. Since then, antibiotics have saved millions of lives and transformed
Orthopoxvirus variola is the virus responsible for the well-known smallpox disease. It belongs to the Poxviridae family which is further split into the subfamilies Entomopoxivirinae which only affects insects, and Chordopoxivirinae which infects vertebrae (Hughes). It is in group one of the Baltimore Classification since it possesses double-stranded DNA. This group also includes viruses in the Herpesviridae family, certain bacteriophages, as well as the mimivirus. The linear genome consists of approximately