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Explain how infective agents can be transmitted to a person
Infectious diseases, also known as communicable diseases, contagious diseases or transmissible diseases comprise clinically evident illness (i.e., characteristic medical signs and/or symptoms of disease) resulting from the infection, [ presence and growth of pathogenic biological agents in an individual host organism. In certain cases, infectious diseases may be asymtomatic for much or all of
their course. Infectious pathogens include some viruses, bacteria, fungi, protozoa, multicellular parasites, and aberrant proteins known as prions. These pathogens are the cause of disease epidemics, in the sense that without the pathogen, no infectious epidemic occurs. Transmission of pathogen can occur in various ways including physical contact, contaminated food, body fluids, objects, airborne inhalation, or through vector organisms.[1] Infectious diseases that are especially infective are sometimes called contagious and can be easily transmitted by contact with an ill person or their secretions. Infectious diseases with more specialized routes of infection, such as vector transmission or sexual transmission, are usually regarded as contagious but do not require medical quarantine of victims. The term infectivity describes the ability of an organism to enter, survive and multiply in the host, while the infectiousness of a disease indicates the comparative ease with which the disease is transmitted to other hosts.[2] An infection is not synonymous with an infectious disease, as some infections do not cause illness in a host.[1] ]
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what methods of communication people with sight loss used
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Asked 8/14/2011 1:53:56 AM
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what methods of communications people with hearing loss use
Weegy: Read a Deaf Blind Uk Site article: (Types of Communication People suffering from deafblindness use a variety of different communication methods. Which method they choose depends upon how much useful sight and hearing they retain. [ [ Other factors include the causes of their deafblindness and for how long the person has had sensory impairments. And in some cases a deafblind person can make use of a combination of techniques to communicate. Here are some of the most common types of communication used by deafblind people. Also called finger spelling, this method represents the letters of an alphabet using only the hands. This type of signing makes use of touch by spelling out each word onto a deafblind person's hand. Each letter is signified by a particular sign or location on the hand. Although the Deafblind manual alphabet can take a while to learn it's much faster to use than other methods such as block. Due to it's speed and fluency, this method is one of the most commonly used worldwide. The manual alphabet can be used to denote complex words by spelling individual letters or quickly express simple information such as 'yes' and 'no' through use of quick signs. Block Block is another form of manual communication in which words are spelled out onto the palm of the deafblind person's hand. As opposed to other forms of manual signing, Block makes use of tracing in order to spell the words on the palm. Block can be used to spell out complex words by tracing each letter with your finger in block capitals on the deafblind person's palm. Letter's are placed on top of each other and there are slight pauses to signify the end of a word. It's important to keep letters large and clear as it's easy to mistake similar shaped letters. Although learning Block requires very little tuition, it isn't as fast and is less popular than other signing methods due to the limited speed at which information can be imparted. British Sign Language (BSL) BSL is the main sign ... (More)
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what is acquired sensory loss
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what are the main causes of sensory loss
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