- With the possibility of a new Covid-19 variant triggering a fresh surge in cases, the Centre has told the states to send sewage samples to all sentinel sites that currently carry out surveillance of Poliovirus.
- Sentinel surveillance is the “monitoring of rate of occurrence of specific diseases/conditions through a voluntary network of doctors, laboratories and public health departments with a view to assess the stability or change in health levels of a population”.
Polio
Polio is a crippling and potentially deadly viral infectious disease that affects the nervous system.
There are three individual and immunologically distinct wild poliovirus strains:
- Wild Poliovirus type 1 (WPV1)
- Wild Poliovirus type 2 (WPV2)
- Wild Poliovirus type 3 (WPV3)
Symptomatically, all three strains are identical, in that they cause irreversible paralysis or even death.
- However, there are genetic and virological differences, which make these three strains separate viruses which must
- The virus is transmitted by person-to-person mainly through the faecal-oral route or, less frequently, by a common vehicle (for example, through contaminated water or food).
- It largely affects children under 5 years of age. The virus multiplies in the intestine, from where it can invade the nervous system and can cause paralysis.
- Most people with polio do not feel sick. Some people have only minor symptoms, such as fever, tiredness, nausea, headache, pain in the arms and legs, etc.
- In rare cases, polio infection causes permanent loss of muscle function (paralysis).
- Polio can be fatal if the muscles used for breathing are paralysed or if there is an infection of the brain.
- There is no cure, but it can be prevented through Immunisation
- In 2019, polio outbreaks were recorded in the Philippines, Malaysia, Ghana, Myanmar, China, Cameroon, Indonesia and Iran, which were mostly vaccine-derived in which a rare strain of the virus genetically mutated from the strain in the vaccine.
- According to the WHO (World Health Organisation), if the oral vaccine-virus is excreted and allowed to circulate in an unimmunised or under-immunised population for at least 12 months, it can mutate to cause infections.
Universal Immunization Programme (UIP):
- It was launched in 1985 with the modification to ‘Expanded Programme of Immunization (EPI).
- The objectives of the Programme include: Rapidly increasing immunisation coverage, Improving the quality of services, Establishing a reliable cold chain system to the health facility level, Introducing a district-wise system for monitoring of performance, Achieving self-sufficiency in vaccine production.
- National Security Council Secretariat Recently, the National Security Council Secretariat organised the National Cyber Security Incident Response Exercise (NCX India) .
- NCX India will be conducted as a hybrid exercise over a period of ten days from 18th to 29th April 2022.
- It is launched with the aim to train senior management and technical personnel of Government/Critical Sector organisations and agencies on contemporary cyber threats and handling cyber incidents and response.
National Security Council
- NSC of India is a three-tiered organisation that oversees political, economic, energy and security issues of strategic concern.
- The National Security Advisor (NSA) presides over the NSC and is also the primary advisor to the Prime Minister. The current National Security Advisor is Ajit Doval.
- It was formed in 1998, where all aspects of national security are deliberated upon.
SOURCE: THE HINDU,THE ECONOMIC TIMES,MINT