WebA number of environmental factors influence the spread of communicable diseases that are prone to cause epidemics. The most important of these are: water supply. sanitation facilities. food. climate. A lack of safe water, inadequate excreta disposal facilities, poor hygiene, poor living conditions and unsafe food can all cause diarrhoeal diseases. WebOct 24, 2024 · A pathogen is something that causes disease. Germs that can have a long-lasting presence in human blood and disease in humans are called bloodborne pathogens. The most common and dangerous germs spread through blood in the hospital are: Hepatitis B virus ( HBV) and hepatitis C virus ( HCV ). These viruses cause infections and liver …
What is a Pathogen? 4 Types and How They Spread Disease
WebJan 16, 2024 · Author summary Vector-borne diseases (VBDs) such as dengue, Chagas disease, human African trypanosomiasis (HAT), leishmaniasis, and malaria exert a huge burden of morbidity and mortality worldwide. The principal method by which these diseases are controlled is through vector control. The authors chart the history of vector control … WebFeb 24, 2024 · Vectors: Integrated management and public health entomology Vector-borne diseases of public health importance are those infectious diseases spread by some organisms, such as insects and … disable email scanning windows 10
The importance of vector control for the control and elimination
WebDec 30, 2024 · Contact transmission includes direct contact or indirect contact. Person-to-person transmission is a form of direct contact transmission. Here the agent is transmitted by physical contact between two individuals (Figure 16.3. 1) through actions such as touching, kissing, sexual intercourse, or droplet sprays. WebVector-borne diseases are illnesses that are transmitted by vectors, which include mosquitoes, ticks, and fleas. bacteria, and protozoa, which can be transferred from one host (carrier) to another. In the United States, there are currently 14 vector-borne diseases that are of national public WebNational Center for Biotechnology Information disable editing on excel file