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Infection is the detrimental colonization of a host organism by a foreign parasite species.
pathogenesis(why infection occurs)Persistent infection occur because the body is unable to clear the organism after the initial infection. Persistent infection are characterized by the continual presence of the infectious organism resulting in recurrent relapses.There are some viruses that can maintain a persistent infecting different cells of the body. A typical example is the herpes virus which tends to hide in nerves and become reactivated when specific circumstances arise.
What else can I help you with?
Does the chain of infection have to be continuous for an infection to occur?
No, the chain of infection does not have to be continuous for an infection to occur. An infection can develop if a susceptible host comes into contact with a pathogen, even if there are breaks in the chain of transmission. Factors such as environmental conditions, the immune status of the host, and the presence of reservoirs can influence the likelihood of infection despite interruptions in the chain.
The chain of infection is a process in which?
The chain of infection is a process in which a pathogen moves from a reservoir to a susceptible host, passing through a series of steps that include the portal of exit, mode of transmission, portal of entry, and establishment of infection in the host. Breaking any step in the chain can help prevent the spread of infection.
Chain of infection for biological agents?
The chain of infection for biological agents begins with the etiological agent and includes the reservoir, the portal of exit, and the mode of transmission. The portal of entry and the susceptible host end the chain.
What is the correct order of the chain of infection?
Oh, dude, you're asking about the chain of infection? Like, it's super simple. First, you've got your infectious agent, then you've got your reservoir, next up is the portal of exit, after that is the mode of transmission, then comes the portal of entry, and finally, you end with the susceptible host. Easy peasy lemon squeezy!
What is host tissue?
Host tissue refers to the cells, tissues, or organisms that provide the environment for a parasite or pathogen to live and reproduce. It can be human, animal, or plant cells that are susceptible to infection or infestation by a foreign organism.
Is A Susceptible Host Is A Person Who Has Little Or No Immunity To Infection By A Transmitted Pathogen?
Yes, a susceptible host is an individual who has little or no immunity to infections caused by a transmitted pathogen. This lack of immunity can result from various factors, including age, health status, or previous exposure to the pathogen. As a result, susceptible hosts are at a higher risk of becoming infected when exposed to infectious agents.
What is the susceptible host of poliomyelitis?
Humans
If one link in the chain of infection is missing an infection can still spread is true or false.?
False. In order for an infection to spread, all links in the chain of infection must be present: infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host. If any link is missing, the spread of infection is disrupted.
What type of host must be available and capable of being infected by a pathogen in order for infection to take place?
For an infection to occur, a susceptible host must be present, meaning that the host's immune system is either compromised or not fully equipped to combat the pathogen. This often includes individuals with weakened immune responses, such as those with chronic illnesses, the elderly, or young children. Additionally, the host must have specific receptors or cellular environments that allow the pathogen to attach, invade, and replicate. Without these conditions, the pathogen is unlikely to establish an infection.
What is true about lysogenic infection?
Infection of the host cell then leading to recombination to the host cell's DNA.
What is the difference between latent infection and inapparent infection?
An inapparent infection occurs when a susceptible person is exposed to an agent, is consequently infected, but neverdevelops clinical symptoms (subclinical). An inapparent infection may result in immunity - but they may not develop immunity and could even become a carrier.In contrast, an exposed susceptible person may develop symptoms (clinical infection), but later enter a period where they no longer exhibit those symptoms. This person would be said to have a "latent infection". They have not recovered - they are still infected -- and they might start to exhibit clinical symptoms later.Exposed ---- Infected ------ no symptoms --------------------------------------> Resolution INAPPARENT INFECTIONExposed ---- Infected ----- symptoms ----no symptoms ---- symptoms ----> Resolution|< Latent Infection>|- Dominick A. Leone -
What is a subsequent infection?
A subsequent infection refers to an infection that occurs after an initial infection has already been established in a host. This can happen when the immune system is weakened or compromised by the first infection, making the body more susceptible to additional pathogens. Subsequent infections can be caused by the same pathogen or different ones and may complicate the clinical course of the illness. Effective management of the initial infection is crucial to prevent these secondary infections.
