The number of patients with swine human Streptococcus infection in Sichuan increased to 80

Introduction: the epidemic situation of swine human streptococcal infection in Sichuan Province is expanding Up to now, there have been 80 cases (58 cases yesterday) and 19 deaths (17 cases yesterday) In addition to Ziyang City, Neijiang City also found cases China's Ministry of Health said Friday that as of July 25, there had been 80 cases in total, of which 67 were clinically diagnosed and 13 suspected; 19 had died, 4 were cured and discharged, and 17 were critically ill The cases were distributed in four districts (counties) of Ziyang City and Neijiang City, involving 40 towns (streets) and 75 villages (neighborhood committees) According to the investigation and detection of the national and Sichuan Provincial joint expert group, the causes of the unknown diseases recently occurred in Ziyang and Neijiang of Sichuan Province have been preliminarily identified: all the patients have the history of killing and infecting the dead pigs with Streptococcus suis type II disease without permission, and the causes are preliminarily confirmed as Streptococcus suis type II infection After the outbreak, the Ministry of health and the Ministry of agriculture have sent a joint working group to assist the local health and agricultural departments in emergency operations, to identify designated hospitals, train medical personnel, carry out extensive screening, search for suspicious patients and pigs that may be infected with Streptococcus suis At the same time, we should strengthen the education and publicity of health-related knowledge, and improve the awareness of disease prevention of the masses Local residents are required not to kill or process dead pigs to prevent the spread of the epidemic According to Chen Zhihai, head of the national clinical expert group dispatched by the Ministry of health to Ziyang, the Sichuan government deployed prevention and control in time Through the recent investigation and test of all cases, it was found that the patients had a common feature, that is, they had the experience of direct contact with sick and dead pigs before the onset of the disease, and the patients had scars on their hands Through the research and analysis of the above situation by the expert group and the autopsy of the sick and dead pigs, it has been preliminarily confirmed that the cause is Streptococcus suis type II infection Chen Zhihai said that the results of the current survey showed that the cases were scattered and there was no obvious epidemiological link between them There was no evidence that the disease spread among people At present, no infection has been found in large-scale pig farms Streptococcus suis is one of the second class animal diseases stipulated by the state, and it is a kind of zoonosis Streptococcus is widely distributed in healthy mammals and human body Under the guidance of the reduction of animal resistance and the change of external environment, it will cause animal and human diseases Streptococcus suis can be transmitted to people through wounds, digestive tract and other ways According to experts, Streptococcus suis was identified for the first time in the late 1950s, with cases in France, Denmark, the United States, Canada and other countries Experts pointed out that for Streptococcus suis, through preventive treatment and comprehensive measures such as immunization and disinfection, it can be controlled and put out The incidence rate of Streptococcus suis in Jiangsu in 98 and 99 years was caused by many streptococci In 1999 and 1999, the group II was epidemic in pig farms in some parts of the province The incidence and mortality of Swine Streptococcus suis were as high as 50%, and the infection and death of the infected pigs were also caused At present, most of the patients are in stable condition and recovering Source: Hong Kong Wenhui