The article discusses the rare but intriguing case of a pregnant woman with breast cancer, highlighting the interaction between pregnancy and cancer. The authors, J. L. Faure and A. Pinard, note that while textbooks often overlook the relationship between pregnancy and breast cancer, they have observed that pregnancy can accelerate the growth of breast cancer. They present a detailed clinical history of a 34-year-old primipara who developed breast cancer during pregnancy. Despite initial slow progression, the cancer rapidly advanced after the onset of pregnancy. The case underscores the need for further research into the complex interactions between pregnancy and cancer. Prof. Karl Pearson criticizes the theory that improved sanitary conditions are solely responsible for the decline in tuberculosis mortality rates. He argues that the death rate from tuberculosis has stabilized or even increased, challenging the effectiveness of sanatoria and other treatments. Pearson's analysis suggests that the decline in tuberculosis mortality may be due to factors such as increased immunity and resistance in the population, rather than solely improved sanitation. He also questions the efficacy of antipyrin, a common treatment, and its effects on the nervous system. The article includes a case study where antipyrin caused toxic reactions in a patient with acute pulmonary tuberculosis. The article reviews recent research on the chemical structure and physiology of microbes and poisons. It highlights the importance of understanding the nature of diseases and the role of microbes in causing them. The research has advanced our understanding of the chemistry of putrefaction and the toxic effects of certain substances, contributing to the development of more effective treatments. The article discusses the life cycle and impact of filaria, a parasitic worm that causes various diseases such as elephantiasis and chyluria. Filaria is transmitted by mosquitoes and can cause significant tissue hypertrophy and inflammation. The article outlines the life cycle of filaria and its connection to human diseases, emphasizing the need for further research to confirm its role in these conditions. It also mentions the use of inunction oil or ointment as a treatment method and the importance of strict precautions to prevent the spread of the disease. The article reviews the treatment of sciatica using perineural infiltration with physiological saline solution. Leszynsky reports on his experience treating 160 cases of sciatica, finding the method effective and safe. He notes that the procedure is particularly useful for subacute and chronic cases, providing prompt and permanent relief. The article emphasizes the mechanical action of the fluid in loosening adhesions around the sciatic nerve, contributing to the positive outcomes observed.The article discusses the rare but intriguing case of a pregnant woman with breast cancer, highlighting the interaction between pregnancy and cancer. The authors, J. L. Faure and A. Pinard, note that while textbooks often overlook the relationship between pregnancy and breast cancer, they have observed that pregnancy can accelerate the growth of breast cancer. They present a detailed clinical history of a 34-year-old primipara who developed breast cancer during pregnancy. Despite initial slow progression, the cancer rapidly advanced after the onset of pregnancy. The case underscores the need for further research into the complex interactions between pregnancy and cancer. Prof. Karl Pearson criticizes the theory that improved sanitary conditions are solely responsible for the decline in tuberculosis mortality rates. He argues that the death rate from tuberculosis has stabilized or even increased, challenging the effectiveness of sanatoria and other treatments. Pearson's analysis suggests that the decline in tuberculosis mortality may be due to factors such as increased immunity and resistance in the population, rather than solely improved sanitation. He also questions the efficacy of antipyrin, a common treatment, and its effects on the nervous system. The article includes a case study where antipyrin caused toxic reactions in a patient with acute pulmonary tuberculosis. The article reviews recent research on the chemical structure and physiology of microbes and poisons. It highlights the importance of understanding the nature of diseases and the role of microbes in causing them. The research has advanced our understanding of the chemistry of putrefaction and the toxic effects of certain substances, contributing to the development of more effective treatments. The article discusses the life cycle and impact of filaria, a parasitic worm that causes various diseases such as elephantiasis and chyluria. Filaria is transmitted by mosquitoes and can cause significant tissue hypertrophy and inflammation. The article outlines the life cycle of filaria and its connection to human diseases, emphasizing the need for further research to confirm its role in these conditions. It also mentions the use of inunction oil or ointment as a treatment method and the importance of strict precautions to prevent the spread of the disease. The article reviews the treatment of sciatica using perineural infiltration with physiological saline solution. Leszynsky reports on his experience treating 160 cases of sciatica, finding the method effective and safe. He notes that the procedure is particularly useful for subacute and chronic cases, providing prompt and permanent relief. The article emphasizes the mechanical action of the fluid in loosening adhesions around the sciatic nerve, contributing to the positive outcomes observed.