Dengue Fever at first causes an abrupt high fever, headaches, rash, slight nose or gum bleeding, and extreme muscle, joint, and bone pain, followed by drowsiness, irritability, severe abdominal pain, and bloody vomit.

Signs and Symptoms of Dengue Fever

Dengue Fever is caused by four serotypes of *Flavivirus* species called called dengue 1–4 and is transmitted to humans through mosquitoes.

- Epstein-Barr Virus (EBV)
- Cytomegalovirus Infections
- Yellow Fever
- Dengue Fever
- Chikungunya Fever
- Ebola Virus Disease
- Hantavirus
- Human Immunodeficiency Virus (HIV)

Viral Infections of the Circulatory and Lymphatic Systems

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

EBV also known as Human herpesvirus 4 is a widespread pathogen associated with many diseases including mononucleosis and Burkitt Lymphoma.

  Epstein-Barr Virus (EBV)

Cytomegalovirus, also known as human herpesvirus 5 (HHV-5), is the major cause of non-Epstein-Barr infectious mononucleosis.

Cytomegalovirus 

Yellow Fever is caused by the pathogen *Flavivirus* and is transmitted to humans by mosquito vectors.

Yellow Fever

Dengue Fever

Chikungunya Fever is caused by the chikungunya virus (CHIKV) and is transmitted to humans through mosquitoes.

Chikungunya Fever

*Ebolavirus* is the pathogen responsible for Ebola Virus Disease.

Ebola Virus

*Hantavirus* is the genus of the nine viruses that cause hantavirus pulmonary syndrome (HPS) and hemorrhagic fever with renal syndrome (HFRS).

*Hantavirus*

Human immunodeficiency virus (HIV) is the virus that causes acquired immune deficiency syndrome (AIDS). It greatly weakens the immune system by infecting and destroying antibody-producing cells, leaving an untreated person vulnerable to opportunistic infections. HIV consists of two variants, HIV-1 and HIV-2, and a patient's condition is considered AIDS when their CD4 T-cell count drops below 200 cells/μL.

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