Query: He claimed "the planet is running a ’fever’ and the prognosis is that it is apt to get much worse."

Relevant passages:
Scarlet fever <=SEP=> Scarlet fever can occur as a result of a group A Streptococcus ( group A strep ) infection . The signs and symptoms include a sore throat , fever , headaches , swollen lymph nodes , and a characteristic rash . The rash is red and feels like sandpaper and the tongue may be red and bumpy . It most commonly affects children between five and fifteen years of age .   Scarlet fever affects a small number of people who have either strep throat or streptococcal skin infections . The bacteria are usually spread by people coughing or sneezing . It can also be spread when a person touches an object that has the bacteria on it and then touches their mouth or nose . The characteristic rash is due to the erythrogenic toxin , a substance produced by some types of the bacterium . The diagnosis is typically confirmed by culturing the throat .   There is no vaccine . Prevention is by frequent handwashing , not sharing personal items , and staying away from other people when sick . The disease is treatable with antibiotics which prevents most complications . Outcomes with scarlet fever are typically good . Long-term complications as a result of scarlet fever include kidney disease , rheumatic heart disease , and arthritis . It was a leading cause of death in children in the early 20th century .

Dysentery <=SEP=> Dysentery is a type of gastroenteritis that results in diarrhea with blood . Other symptoms may include fever , abdominal pain , and a feeling of incomplete defecation .   It is caused by several types of infections such as bacteria , viruses , parasitic worms , or protozoa . The mechanism is an inflammatory disorder of the intestine , especially of the colon .

Dengue fever <=SEP=> Dengue fever is a mosquito-borne tropical disease caused by the dengue virus . Symptoms typically begin three to fourteen days after infection . This may include a high fever , headache , vomiting , muscle and joint pains , and a characteristic skin rash . Recovery generally takes two to seven days . In a small proportion of cases , the disease develops into the life-threatening dengue hemorrhagic fever , resulting in bleeding , low levels of blood platelets and blood plasma leakage , or into dengue shock syndrome , where dangerously low blood pressure occurs .   Dengue is spread by several species of mosquito of the Aedes type , principally A. aegypti . The virus has five different types ; infection with one type usually gives lifelong immunity to that type , but only short-term immunity to the others . Subsequent infection with a different type increases the risk of severe complications . A number of tests are available to confirm the diagnosis including detecting antibodies to the virus or its RNA .   A novel vaccine for dengue fever has been approved and is commercially available in a number of countries . Other methods of prevention are by reducing mosquito habitat and limiting exposure to bites . This may be done by getting rid of or covering standing water and wearing clothing that covers much of the body . Treatment of acute dengue is supportive and includes giving fluid either by mouth or intravenously for mild or moderate disease . For more severe cases blood transfusion may be required . About half a million people require admission to hospital a year . Nonsteroidal anti-inflammatory drugs ( NSAIDs ) such as ibuprofen should not be used .   Dengue has become a global problem since the Second World War and is common in more than 110 countries . Each year between 50 and 528 million people are infected and approximately 10,000 to 20,000 die . The earliest descriptions of an outbreak date from 1779 . Its viral cause and spread were understood by the early 20th century . Apart from eliminating the mosquitoes , work is ongoing for medication targeted directly at the virus . It is classified as a neglected tropical disease .

Prognosis <=SEP=> Prognosis ( Greek : πρόγνωσις `` fore-knowing , foreseeing '' ) is a medical term for predicting the likely outcome of one 's chance of survival . When applied to large statistical populations , prognostic estimates can be very accurate : for example the statement `` 45 % of patients with severe septic shock will die within 28 days '' can be made with some confidence , because previous research found that this proportion of patients died . However , it is much harder to translate this into a prognosis for an individual patient : additional information is needed to determine whether a patient belongs to the 45 % who will die , or to the 55 % who survive .   A complete prognosis includes the expected duration , function , and description of the course of the disease , such as progressive decline , intermittent crisis , or sudden , unpredictable crisis .