What are the major structural differences between a virus and a bacteria?
Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can’t survive without a host.
Can a virus multiply on a surface?
Virus numbers can’t increase on a surface—only decline. When it comes to surface transmission, non-porous surfaces that we touch often but rarely clean remain a concern.
Do viruses spread faster than bacteria?
Humans produce a new generation every 20 years or so; bacteria do it every 20 to 30 minutes, and viruses even faster. Because they reproduce so quickly, microorganisms can assemble in enormous numbers with great variety in their communities.
What are some hazards of being a nurse?
5 Most Dangerous Things about Being a Nurse
- Physical Strain. Nurses stay on their feet for long hours at a time, which means physical strain poses one of the biggest risks to nurses.
- Chronic Overtime.
- Working Night Shifts.
- Experiencing Workplace Violence.
- Exposure to Hazardous Chemicals.
What is the most common infection transmitted to healthcare workers?
HEALTHCARE WORKERS
- Bloodborne Pathogens (BBP): HIV/AIDS, Hepatitis B, Hepatitis C.
- Influenza (FLU) Seasonal. Pandemic. Avian. Swine.
- Ebola.
- Methicillin-resistant Staphylococcus aureus (MRSA)
- Tuberculosis (TB)
- Severe Acute Respiratory Syndrome (SARS)
- Middle East Respiratory Syndrome (MERS)
What is the weirdest disease?
- Water allergy.
- Foreign accent syndrome.
- Laughing Death.
- Fibrodysplasia ossificans progressiva (FOP)
- Alice in Wonderland syndrome.
- Porphyria.
- Pica.
- Moebius syndrome. Moebius is extremely rare, genetic and characterized by complete facial paralysis.
What viruses target bacteria?
A bacteriophage is a virus that infects bacteria A bacteriophage, or phage for short, is a virus that infects bacteria. Like other types of viruses, bacteriophages vary a lot in their shape and genetic material.
What’s the difference between a bacteria and a virus?
On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
How quickly do viruses reproduce?
The reproductive cycle of viruses ranges from 8 hrs (picornaviruses) to more than 72 hrs (some herpesviruses). The virus yields per cell range from more than 100,000 poliovirus particles to several thousand poxvirus particles.
What are the 5 stages of infectious disease?
The five periods of disease (sometimes referred to as stages or phases) include the incubation, prodromal, illness, decline, and convalescence periods (Figure 2). The incubation period occurs in an acute disease after the initial entry of the pathogen into the host (patient).
What are the 5 infectious agents?
There are five major types of infectious agents: bacteria, viruses, fungi, protozoa, and helminths. In addition, a new class of infectious agents, the prions, has recently been recognized. A brief review of the general characteristics of each of these agents and examples of some diseases they cause follows.