首页
登录
职称英语
Common cold is a viral infection that starts in the upper respiratory tract
Common cold is a viral infection that starts in the upper respiratory tract
游客
2023-11-19
23
管理
问题
Common cold is a viral infection that starts in the upper respiratory tract, sometimes spreads to the lower structures, and may contribute secondary infections in the eyes or middle ears. The main differences between the common cold and other respiratory infections are the absence of fever and the relative mildness of the symptoms.
About 200 different strains of virus are capable of producing colds. Frequently two or more different viruses can be isolated during a single episode. The cold is spread by person-to-person contact. People can carry the virus and communicate it without themselves experiencing any of the symptoms. Incubation is short--usually one to four days. The viruses start spreading from an infected person before the symptoms appear, and the spread reaches its peak during the symptomatic phase. The incidence of colds peaks during the autumn, and minor epidemics commonly occur throughout the winter. The reason for this incidence is unknown; it may not stem mainly from stresses imposed by chilly weather but rather result from the greater amount of time spent indoors, which increases the likelihood of close contact with those persons carrying cold viruses.
Pathologic changes occurring in the mucous membrane that lines the nose, the nasal sinuses, the nasoharynx, and other upper respiratory passages may include tissue swelling, congestion of blood, and oozing of fluids. During the acute phase of the disease, the respiratory secretions are altered by increase in serum proteins. Parts of cells may also be found in tile fluids. Tissue repair is rapid and seems complete, although a relationship might exist between colds and more serious respiratory conditions.
Cold symptoms vary from person to person, but in the individual the same symptoms tend to recur in succeeding bouts of infection. Manifestations may include sneezing, headaches, fatigue, chilling, sore throat, inflammation of the nose (rhinitis), and nasal discharge. There is usually no fever. The symptoms usually last for only a few days. The nasal discharge is the first warning. The secretions become watery, clear, and excessive. Later, they thicken, increase in mucus and pus content, and may colour a yellow-green, with traces of blood. Coughing can be dry or produce amounts of mucus. Other more serious diseases with similar general symptoms may be mistaken for a cold; some of these are tuberculosis, bronchitis, lung abscesses, and inflammation around the heart.
Treatment is, in most instances, directed toward allaying of symptoms, coupled with rest and adequate fluid intake. Occasionally antibiotics are given to prevent secondary infections. [br] Which of the following statements is TRUE?
选项
A、Common cold is the first warning of bronchitis.
B、Tuberculosis is believed to have developed from common cold.
C、The application of antibiotics is the only effective means in the treatment of common cold.
D、Radical surgery is never needed in the treatment of common cold.
答案
D
解析
文章第四段最后一句提到“可能把其他症状大体相同的更严重的疾病错当成感冒,这样的疾病有:肺结核、支气管炎、肺脓肿以及心肌炎”,由此可知,A “普通感冒是支气管炎的最早征兆”和B “人们认为肺结核是由感冒演变的”表述不正确。文章最后一句提到“偶尔使用抗生素预防继发性感染”,由此可知,C “使用抗生素是治疗感冒的唯一有效手段”表述不正确。由最后一段第一句“对于大多数感冒,治疗在于减轻症状,再加上休息和多喝水”可知,D “治疗感冒无需进行大手术”符合原文,故为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3200161.html
相关试题推荐
NigeriawillreturntotheCommonwealthafter______.[br][originaltext]Com
NigeriawillreturntotheCommonwealthafter______.[originaltext]Commonwea
Whatdogoodnegotiatorsandaveragenegotiatorshaveincommon?[br][original
Whatdogoodnegotiatorsandaveragenegotiatorshaveincommon?[br][original
Sylviawas’inlowspiritsbecauseherthroatinfectionlefthervery______and
Crypticcoloringisbyfarthecommonestuseofcolorinthestrugglefor
Crypticcoloringisbyfarthecommonestuseofcolorinthestrugglefor
Crypticcoloringisbyfarthecommonestuseofcolorinthestrugglefor
CommunicationcomesfromtheLatincommunis,common.Whenwecommunicatewe
CommunicationcomesfromtheLatincommunis,common.Whenwecommunicatewe
随机试题
“我市必须清理网吧。因为,只有两种可能,或者清理,或者不清理。如果不清理网吧,就
甲将面粉制作的小丸冒充消炎药卖给某药店后,获利巨大。对甲的行为( )。A.应以
正弦波调制中的数字调制包含()。A.标准调幅AM B.双边带调制DSB C.
肾病综合征患者尿中不可见A.脂肪管型 B.红细胞管型 C.肾小管上皮细胞管型
认为若青少年能充分拥有对自我和工作世界的了解,即能增进其职业生涯的正确性的学派是
以下属于私募基金宣传推介规范的有()。 ①募集机构应当向特定对象宣传推介
下列说法中,正确的是( )。A.大赦既赦其刑,又赦其罪B.特赦只赦其刑
《商业银行公司治理指引》指出,商业银行可以设立独立于操作和经营条线的首席风险官,
铅中毒时血和尿中ALA升高是由于A.ALAS受抑制 B.ALAD受抑制 C.
肺炎支原体肺炎,抗生素选择正确的是A.复方新诺明 B.红霉素 C.青霉素
最新回复
(
0
)