When was COVID-19 declared a pandemic?
The World Health Organization declared the outbreak a Public Health Emergency of International Concern on 30 January 2020, and a pandemic on 11 March 2020.
What is the difference between an outbreak, epidemic and pandemic?
An outbreak is a sudden rise in cases of a disease in a particular place. An epidemic is a large outbreak. A pandemic means a global epidemic.
Does a pandemic reflect the severity of a disease?
A pandemic has nothing to do with how serious an illness is. It just means a disease is spreading widely and at an alarming rate.
Will climate change make COVID-19 worse?
There is no evidence of a direct connection between climate change and the emergence or transmission of COVID-19 disease. As the disease is now well established in the human population, efforts should focus on reducing transmission and treating patients.
What does the WHO pandemic declaration mean?
The declaration allows governments to activate preparedness plans and undertake emergency procedures to protect the public, such as travel and trade restrictions.
What is a disease outbreak?
A disease outbreak is the occurrence of disease cases in excess of normal expectancy. The number of cases varies according to the disease-causing agent, and the size and type of previous and existing exposure to the agent. Disease outbreaks are usually caused by an infection, transmitted through person-to-person contact, animal-to-person contact, or from the environment or other media. Outbreaks may also occur following exposure to chemicals or to radioactive materials.
How do viruses get their name?
Viruses are named based on their genetic structure to facilitate the development of diagnostic tests, vaccines and medicines. Virologists and the wider scientific community do this work, so viruses are named by the International Committee on Taxonomy of Viruses (ICTV).
How long does the virus survive on surfaces?
See full answerIt is not certain how long the virus that causes COVID-19 survives on surfaces, but it seems to behave like other coronaviruses. Studies suggest that coronaviruses (including preliminary information on the COVID-19 virus) may persist on surfaces for a few hours or up to several days. This may vary under different conditions (e.g. type of surface, temperature or humidity of the environment).If you think a surface may be infected, clean it with simple disinfectant to kill the virus and protect yourself and others. Clean your hands with an alcohol-based hand rub or wash them with soap and water.
Do weather and climate determine where COVID-19 occurs?
No. There is currently no conclusive evidence that either weather (short term variations in meteorological conditions) or climate (long-term averages) have a strong influence on transmission.
Who issued the official name of COVID-19?
The official names COVID-19 and SARS-CoV-2 were issued by the WHO on 11 February 2020.