根据第一段的“Problems start when animal viruses are able to infect people as well, a process known as zoonosis.(当动物病毒也能感染人类时,问题就开始了,这一过程被称为人畜共患病)”可知,当病毒从一只猴子传给一个男孩时,这个过程就被称为人畜共患病,故选B。 (2)题详解: 细节理解题。根据第...
What are the types of disease-causing agents? There are many types of disease-causing agents. Five common disease-causing agents include viruses, bacteria, protozoans, fungi, and parasitic worms. Prions are also disease-causing agents.What is a Disease-Causing Agent? There are a lot of compone...
Microscopic organisms that are disease-causing agents are called What organisms cause infectious disease? Diseases that are caused by fungi are called what? What is a causative organism? What infectious disease is caused by a protozoan? What is a viral disease caused by?
The minute organisms of nature that can be seen only under the microscope, such as viruses and bacteria, are called microorganisms. They can be harmful to living organisms as they can cause many diseases like bacterial disease (such as cholera), ...
Disease-causing agents, such as viruses, usually have specific targets. Some viruses affect only humans; other viruses live in or affect only animals. Problems start when animal viruses are able to infect people as well, a process known as zoonosis. When an animal virus passes to a human, ...
Infectiousdiseaseisallaroundus.Disease-causingagents,suchasviruses,usuallyhavespecifictargets.Somevirusesaffectonlyhumans;othervirusesliveinoraffectonlyanimals.Problemsstartwhenanimalvirusesareabletoinfectpeopleaswell,aprocessknownaszoonosis.Whenananimalviruspassestoahuman,theresultscanbefatal.Oftenourimmunesystemsarenot...
The herpes simplex virus remains ___ in the nerve cells of the host for long periods without causing disease. Virulence Factors of Viruses The virulence factors aid in the transmission and survival of the virus to cause an infection in an ind...