Societal perception of people experiencing economic difficulty has historically appeared as a conceptual dichotomy: the "good" poor (people who are physically impaired, disabled, the "ill and incurable," the elderly, pregnant women, children) vs. the "bad" poor (able-bodied, "valid" adults, most often male).According to experts, many women become victims of trafficking, the most common form of which is prostitution, as a means of survival and economic desperation. Deterioration of living conditions can often compel children to abandon school to contribute to the family income, putting them at risk of being exploited. For example, in Zimbabwe, a number of girls are turning to sex in return for food to survive because of the increasing poverty. According to studies, as poverty decreases there will be fewer and fewer instances of violence. Poverty reduction
Various poverty reduction strategies are broadly categorized based on whether they make more of the basic human needs available or whether they increase the disposable income needed to purchase those needs. Some strategies such as building roads can both bring access to various basic needs, such as fertilizer or healthcare from urban areas, as well as increase incomes, by bringing better access to urban markets. In 2015 all UN Member States adopted the 17 Sustainable Development Goals as part of the 2030 Agenda for sustainable development. Goal 1 is to "end poverty in all its forms everywhere".
Alpha-hemolytic species cause oxidization of iron in hemoglobin molecules within red blood cells, giving it a greenish color on blood agar. Beta-hemolytic species cause complete rupture of red blood cells. On blood agar, this appears as wide areas clear of blood cells surrounding bacterial colonies. Gamma-hemolytic species cause no hemolysis.Beta-hemolytic streptococci are further classified by Lancefield grouping, a serotype classification (that is, describing specific carbohydrates present on the bacterial cell wall). The 21 described serotypes are named Lancefield groups A to W (excluding I and J). This system of classification was developed by Rebecca Lancefield, a scientist at Rockefeller University.In the medical setting, the most important groups are the alpha-hemolytic streptococci S. pneumoniae and Streptococcus viridans group, and the beta-hemolytic streptococci of Lancefield groups A and B (also known as “group A strep” and “group B strep”). Table: Medically relevant streptococci (not all are alpha-hemolytic)

Alpha-hemolytic
When alpha-hemolysis (α-hemolysis) is present, the agar under the colony will appear dark and greenish due to the conversion of hemoglobin to green biliverdin. Streptococcus pneumoniae and a group of oral streptococci (Streptococcus viridans or viridans streptococci) display alpha-hemolysis. Alpha-hemolysis is also termed incomplete hemolysis or partial hemolysis because the cell membranes of the red blood cells are left intact. This is also sometimes called green hemolysis because of the color change in the agar. Pneumococci
S. pneumoniae (sometimes called pneumococcus), is a leading cause of bacterial pneumonia and occasional etiology of otitis media, sinusitis, meningitis, and peritonitis.