题目内容
（请给出正确答案）
A.patient
B.carrier
C.intermediate host
D.reservoir host
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更多“The infection source of human parasitology include”相关的问题
The main infection source of epidemic type B enecphalitis virus is()
A．patient
B．health carrier
C．young pig
D．culicine
E．10use
A.reservoir hosts
B.intermediate hosts
C.definite hosts
D.paratenic hosts
The new models of artificial hearts are expected______.
A．to have a working life of 10 or 20 years
B．to be set fully in the patient's chest
C．to be equipped with an external power source
D．to create a new passage for infection
What is the correct way to wear and dispose of masks？
If you decide to wear medical mask which is pleated and flat like this one, it is important to wear and (1) _______________ it correctly. Otherwise, instead of protecting you, the mask becomes a source of infection because of the (2) _________________ that may stay on it.
To (3) ____________________________, you should locate the metal strip at the top of the mask, place over your (4) _______________________, secure the elastics around your ears, or tie the strings behind your head. Make sure it covers your nose, mouth, and chin. While in use, do not touch the (5) ___________________ of your mask.
To (6) ________________________, take the elastics from around your ears or untie the strings behind your head. Do not touch the front of the mask as it may be contaminated. Remove the mask and discard in (7) _______________________.
(8) ______________________ your hands with alcohol hand rub or soap and water. Hand hygiene should be done if you accidentally touch the front of your mask while wearing it. If your mask becomes damp or (9) ___________________, replace it with a new dry mask. Never (10) ______ single-use masks and discard them immediately into closed bins after each use.
For more information on mask use and the New Coronavirus, check WHO website at who.int.
Avian influenza (禽流感), or "bird flu", is an infectious
disease of animals was caused by viruses that normally infect 【S1】______
only birds and, less commonly, pigs. Avian influenza viruses are
highly species-specific, but have, on rare occasions, crossed the
species barrier to infecting humans. 【S2】______
In domestic poultry (家禽), infection with avian influenza
viruses cause two main forms of disease, distinguished by 【S3】______
low and high extremes of virulence (毒性). The so-called
"low pathogenic (病原的)" form. commonly causes only mild
symptoms and may easily go undetected. The highly pathogenic
form. is far more dramatic. It spreads very rapidly through
poultry flocks, causes disease affecting multiple external organs, 【S4】______
and has a mortality that can approach 100%, often within 48
hours.
Bird flu is not the same as SARS. Because their symptoms 【S5】______
are similar, SARS is caused by completely different viruses.
Influenza viruses also are more infectious and cannot be as
readily contained as SARS isolating people who have the 【S6】______
infection.
The current outbreak of bird flu is different from earlier
ones in that officials have been unable to contain its spread. An
outbreak in 1997 in Hong Kong was the first time the virus had
spread to people, but it was much more quickly contained. A
total of 18 people were hospitalized with six reporting deaths. 【S7】______
About 1.5 million chickens were killed by an effort to remove 【S8】______
the source of the virus.
Unlike the 1997 scare, this outbreak has spread more rapidly
to other countries, increasing its exposure on people in varied 【S9】______
locations and raised the likelihood that the strain will combine 【S10】______
with a human influenza virus.
【S1】
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