The 2019 novel coronavirus disease (COVID-19) is a communicable respiratory disease caused by a new strain of coronavirus that causes illness in humans. Scientists are still learning about the disease, and think that the virus began in animals. At some point, one or more humans …
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The Crimean-Congo haemorrhagic fever (CCHF) virus causes severe viral hemorrhagic fever outbreaks. CCHF is endemic in Africa and has case fatality rate of 40%. The virus is primarily transmitted to people from ticks and livestock animals. Human-to-human transmission can occur …
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Dengue is a mosquito-borne viral infection. The infection causes flu-like illness, and occasionally develops into a potentially lethal complication called severe dengue. The global incidence of dengue has grown dramatically in recent decades. About half of the world’s population is …
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Ebola virus disease (EVD) is a severe, often fatal, illness originally transmitted to humans from wild animals (such as fruit bats, porcupines and non-human primates) and then transmitted from human to human through direct contact with the blood, secretions, organs …
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Hepatitis B is a potentially life-threatening liver infection caused by the hepatitis B virus (HBV). It is a major global health problem. It can cause chronic infection and puts people at high risk of death from cirrhosis and liver cancer. …
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Hepatitis C is a liver disease caused by the hepatitis C virus: the virus can cause both acute and chronic hepatitis infection, ranging in severity from a mild illness lasting a few weeks to a serious, lifelong illness. A significant …
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Hepatitis E is a liver infection caused by the virus HEV. Hepatitis E is common in regions with limited resources and limited access to safe drinking water and proper sanitation, hygiene, and health services. Every year there are 20 million …
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The Human Immunodeficiency Virus (HIV) is a major global public health challenge that does not have a cure till now. Globally, thirty-five million lives has been affected by this virus. The WHO African region is the most affected region with …
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Lassa Fever is an acute viral haemorrhagic illness that is endemic in some countries of West Africa. For example, Benin, Ghana, Guinea, Liberia, Mali, Sierra Leone, and Nigeria. The overall case-fatality rate of Lassa Fever is 1%. The number of …
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Malaria is transmitted to Humans through infected mosquito bites. Although Malaria is preventable and curable, it can be a life-threatening condition. In 2016, there were an estimated 216 million cases of malaria in 91 countries with 445,00 deaths, an increase …
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Marburg virus disease (MVD), formerly known as Marburg Hemorrhagic fever, is a severe, often fatal illness in humans. The Marburg virus is transmitted to people from fruit bats and spreads among humans through human-to-human transmission. It causes severe viral hemorrhagic …
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Despite the fact that there is an effective vaccine for measles, Measles is still one of the leading causes of death among young children. Measles vaccination resulted in 84% drop in measles deaths between 2000 and 2016 worldwide. Measles is …
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Meningococcal meningitis is a bacterial form of meningitis, a serious infection of the thin lining that surrounds the brain and spinal cord. Meningococcal meningitis is associated with high fatality (up to 50% when untreated). Meningococcal meningitis is observed worldwide but …
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Coronaviruses are a large and diverse family of viruses that include viruses that are known to cause illness in humans (including the common cold) and animals. However, in 2012, the MERS (for “Middle East respiratory syndrome”) coronavirus (also known as …
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Monkeypox is a viral disease transmitted to humans through contact with the blood, bodily fluids, or cutaneous or mucosal lesions of infected animals. Human infections have been documented through the handling of infected monkeys, Gambian giant rats and squirrels, with …
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Plague is caused by the bacteria Yersinia pestis, a zoonotic bacterium usually found in small mammals and their fleas. There are two main clinical forms of plague infection: bubonic and pneumonic. Bubonic plague is the most common form and is …
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Poliomyelitis (polio) is a highly infectious disease caused by a virus. Polio mainly affects children under 5 years of age. Cases due to wild poliovirus have decreased by over 99% since 1988, from an estimated 350 000 cases then, to …
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Rift Valley Fever is transmitted to humans through contact with the blood or organs of infected animals, and through handling of animal tissue during slaughtering or butchering, assisting with animal births, conducting veterinary procedures, or from the disposal of carcasses …
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Tuberculosis (TB) is the ninth leading cause of death worldwide and the first leading cause from a single infectious agent. TB is also the leading killer of HIV-positive people. In 2016, 10.4 million people fell ill with TB. Quarter of …
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Yellow Fever is an acute viral hemorrhagic disease transmitted through infected mosquitoes. It was named yellow as it, sometimes, cause jaundice (yellow skin and eyes) to the infected people. Thirty-four African countries are endemic to yellow fever. The incubation period …
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Zika virus is transmitted primarily by Aedes mosquitoes during the day in tropical and subtropical regions. An increased risk of neurologic complications is associated with Zika virus infection in adults and children, including Guillain-Barré syndrome, neuropathy and myelitis. Outbreaks of …
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