A: atypical pneumonia refers to pneumonia caused by mycoplasma, chlamydia, Legionella, rickettsia, adenovirus and other unknown microorganisms. Typical pneumonia refers to lobar pneumonia or bronchopneumonia caused by common bacteria such as Streptococcus pneumoniae.
Sars is an acute respiratory infectious disease, which is mainly spread through close air droplets and close contact. Its main clinical manifestation is pneumonia, and there are clustered infections in families and hospitals.
SARS virus may originate from animals.
Xinhua News Agency, Guangzhou, April 5-Experts from the World Health Organization who are investigating SARS in Guangdong told Xinhua News Agency on April 5 that SARS may not have originated in China.
On the morning of the 5th, five experts went to the Medical College of Sun Yat-sen University, had a discussion with virologists and epidemiologists in China who have been working on the treatment of atypical pneumonia recently, and visited the microbiology laboratory of the Medical College of the Chinese University.
Experts from all over the world listened carefully to the introduction of Professor Guo, director of the Microbiology Research Office of the Medical College and a member of the expert group for treating atypical pneumonia in Guangdong Province, and inquired carefully about the symptoms, incidence and death of the first case in Guangdong, as well as how medical staff in China can effectively treat patients and control the incidence and infection rate.
After the meeting, James McGill, a member of the WHO delegation and director of the Epidemiology Department of the US Centers for Disease Control and Prevention, told Xinhua that they had some preliminary guesses about SARS at present, but they were not finally confirmed. Scientists suspect that this atypical pneumonia virus, which consists of chlamydia, coronavirus and mixed virus, originally originated from an animal, but may not have originated from China.
James McGill said that another aspect that puzzles them and is being studied now is that the SARS virus has different characteristics in different patients, some of which are highly contagious and others are not.
Another delegation member, Robert F. Brayman, head of infectious diseases and vaccine science project of the International Center for Health and Population Survey, said that during their three-day investigation visit and data collection, although there were no surprising new findings, the data and information provided by China and the analysis of virus samples were very comprehensive and true, and the treatment of SARS patients was also very effective, which further confirmed their previous assumptions. This is already a very important achievement.
The expert group will go to Guangdong Provincial People's Hospital for investigation on the afternoon of 5th.
What is the cause of SARS?
A: At present, the pathogen of the SARS epidemic has not been finalized. Domestic experts found chlamydia-like particles in samples taken from five SARS patients, while some foreign experts thought it might be a virus, mainly coronavirus or paramyxovirus. Domestic experts have ruled out pathogens such as plague, pulmonary anthrax, leptospirosis, epidemic hemorrhagic fever and legionnaires' disease, and are now focusing on confirming whether they belong to key pathogens such as coronavirus and chlamydia.
Are there any complications after SARS is cured?
People's Daily Online, Guangzhou, April 13: Many people reported that SARS came suddenly, giving people the feeling that it was a strange disease. Are there any complications at the onset of this disease, will it recur after being cured, especially will it leave sequelae after being cured, or will it bring something different from ordinary people? To this end, the reporter specially visited and consulted relevant experts and patients.
Cheng Shixiang, chief physician, director of Zhaoqing Center for Disease Control and Prevention, Guangdong Province. He clearly told reporters that there would be basically no sequelae. He said that typical pneumonia refers to lobar pneumonia or bronchitis caused by common bacteria such as Streptococcus pneumoniae. Atypical pneumonia refers to pneumonia caused by unknown microorganisms such as mycoplasma, chlamydia, Legionella, rickettsia and adenovirus. The latest research shows that the chief culprit of atypical pneumonia may be coronavirus. In other words, "atypical pneumonia" and "atypical pneumonia" are caused by bacteria and viruses, and they are different in etiology. From the epidemiological point of view, the atypical pneumonia that appeared this year is highly contagious, toxic, serious and developing rapidly, which needs to be paid great attention to. But both of them are located in the lungs or bronchi, showing pneumonia or bronchopneumonia. Pneumonia or bronchopneumonia is not a difficult disease, but a common and frequently-occurring disease, which occurs all the time. The medical community has accumulated rich experience in treatment. As long as the treatment time is timely and the treatment method is proper, there will be no complications, and there will be no sequelae. Although there are some differences between atypical pneumonia and atypical pneumonia, there is little difference in pathological mechanism. Therefore, there is no need to fear and panic about atypical pneumonia, and there is absolutely no need to have such concerns.
Zhang Xiang, a doctor who used to be a SARS patient, and Chen Xinni, a nurse, were working nervously in their respective posts when interviewed by reporters. They told reporters that they were infected that day. On February 5, they were on duty when suddenly a patient from other places came to the hospital. Because they have never heard of SARS in advance, they don't know that this is a SARS patient. As usual, they warmly receive patients, take their temperature, blood pressure, pulse and auscultation, let them open their mouths to see the color of their tongues and check whether their throats and tonsils are red, swollen and inflamed. Without any precautions, I was infected unconsciously. Dr. Zhang said that he got sick earlier than nurse Chen. The onset time was February 9th, February 10, and February 1 1 was sent to the designated superior medical unit. He said that at the beginning of the disease, there were only fever, headache and dry cough. In severe cases, the fever is 38.5 degrees. When you are active, you will be short of breath, have difficulty breathing and sometimes even urinate. It's really uncomfortable But in just two days, antiviral treatment will be fine in 20 days, and I have been working since I left the hospital.
The reporter asked them both, "Do you have any complications?" They answered with one voice: "No". The reporter asked, "Did you have a relapse after you left the hospital?" The two not only denied it, but also explained that it would not recur because most people will produce antibodies after being infected with the virus. At the same time, if they have strong self-resistance, they will not be infected even if they come into contact with patients. At that time, several people contacted the patient, while others did not get sick.
Looking at the 24-year-old doctor Zhang and nurse Chen, it's no big deal. They are alive and kicking, full of youthful vitality and enthusiasm for work. The reporter felt that they were no different from those who had no SARS experience, but they were still not at ease, so he asked, "Do you have any different feelings from people or colleagues before the onset?" The two of them smiled and said, "We won't come to work if there is any problem." Zhang Xiang also told reporters that perhaps because he ate some nutrients, his physical strength was better than before. He can eat, sleep and play. Playing ball and running is an essential exercise for him every day.