An investigation into the occupational protection status of clinical nursing staff exposed to anti-tumor drugs

Objective:To investigate the occupational protection status of clinical nursing staff vocationally exposed to anti-tumor drugs.Methods:A self-designed questionnaire was used to survey 180 clinical nursing staff vocationally exposed to anti-tumor drugs.Results:Recognition of the need for protection and dependent occupational protection behaviors were very poor in clinical nursing staff vocationally exposed to anti-tumor drugs.The management of the occupational protection of clinical nursing staff vocationally exposed to anti-tumor drugs was also seriously underdeveloped.Conclusion:There is deficiency in the understanding and related protection practices of clinical nursing staff vocationally exposed to anti-tumor drugs in our hospital.The protection measures currently employed in medical practice are inadequate in virtually every aspect considered.It is recommended that all clinical nursing staff should receive full occupational protection training in these matters.The training must raise nursing staff's awareness of the need for occupational protection and standardize their occupational protection behaviors to conform to "best practice" models.These "best practice" models should be quickly established and all staff made cognizant of them forthwith.In addition,where occupational protection systems are already in place,they should be improved to come into line with the new "best practice" models instigated.

R. sinicus should be reservoir of SL-CoV but not SARSCoV: critical comments on Ge et al.'s paper in Nature

The study of the origin of SARS coronavirus(SARS CoV)and SARS-like coronavirus(SL-CoV)is very important for the prevention of novel human infections with these viruses.Recently,Ge et al.suggest that Chinese horseshoe bats are natural reservoirs of SARSCoV[1].But this conclusion is incorrect.It should be"Chinese horseshoe bats are natural reservoirs of SLCoV"[2-7].The paper also has several methodological problems,leading to errors in the conclusions.

The mathematical simulation of epidemic models of hepatitis A in three big cities of China

There are 6 epidemic models of hepatitis A in the world.In China,there are 3 mod-els,namely,Beijing,Shanghai and Guangzhou models.In 1979,Schenzle proposed a modifiedsimple catalytic model whose force of infectivity is a logistic function.We made a modifiedmodel with the infectivity force of a linear or conic function.According to the actual data,theauthors have fitted 3 epidemic models.The results are satifactory as proved by the x^2-test ofgoodness of fit.The analysis of the models indicates that the force of infectivity has been lower inShanghai than in Beijing and Guangzhou since·1970.An interesting finding is that the differencebetween the 3 epidemic models is due to the function of infectivity force of hepatitis A.

Incidence and distribution of stress fractures in recruits during basic training

Stress fracture（SF）in military recruits in China was investigated using99mTc-MDP bone scintigraphy in a randomized sample of 432 injured who wereclinically screened from 1060 recruits during basic training.The relationship between SFand training intensity was discussed.It was shown that the total incidence was 32.5%.There were two peaks during 9 training-weeks:one was in the 2nd week,and the otherin the 7th.Infantry soldiers had a more intensive training and,therefore a higher inci-dence than in artillery and service troops.Although SF was found in most ofweight-bearing bones,tibia was most commonly fractured（67%）.The findings suggestthat SF is a major training-related injury in military recruits and improperly strengthenedtraining can increase the incidence.

Trends of incidence and mortality rates of stroke from 1983 to 2000 in Hanzhong rural population

Objective: To explore the trends of incidence and mortality rates of stroke in Hanzhong rural population. Methods: Acting as the WHO MONICA project. Results: The incidence rate of stroke was 152.9/100 000. There was decline trend in male(P<0.05). The mortality rate of stroke was 115.9/100 000. There was no significant decline trend during 18-year period (P<0.05). The incidence and mortality rates of stroke of male were higher than those of female(P<0.05).The incidence and mortality rates were all increased with age(P<0.01). Conclusion: It must stick to the long- term prevention measures to decrease incidence rate, and improve the condition of medical treatment to reduce the mortality rate in rural population.

SARS coronavirus without reservoir originated from an unnatural evolution, experienced the reverse evolution, and finally disappeared in the world

Severe acute respiratory syndrome （SARS） first emerged in Guangdong on November 16, 2002, and subsequently spread to Hong Kong, Beijing, Taiwan, and other areas. According to WHO, 8 098 cases were reported in 29 countries.l＇2 Although researchers around the world have been carrying out extensive studies for 10 years, the reservoir of SARS coronavirus （CoV） has not been found. 1,3-18