Web Directory gma Free Links Directory
×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

GS-III :
  • 19 July, 2020

  • 10 Min Read

COVID19- Mom to child transmission

Study finds evidence of vertical transmission of coronavirus across the placenta

Modes of COVID-19 transmission

  • Transmission through droplets and contact with contaminated surfaces seem to be the major routes of novel coronavirus spread.
  • The World Health Organization recently acknowledged that “short-range aerosol transmission” of the virus “cannot be ruled out” in specific indoor locations which are crowded, inadequately ventilated and where exposure to the infected person is over a prolonged period of time.
  • Now, a study has found evidence that confirms vertical transmission of SARS-CoV-2 virus from the mother to the foetus.
  • The route of infection is through the womb (in utero) well before the onset of labour and delivery of the baby.

Transplacental transmission (a probable route):

  • These studies could not confirm the transmission route because samples of placenta, amniotic fluid and blood of the mother and the newborn were not collected and tested in every mother–infant pair.
  • For instance, in a study published recently in the journal CMAJ (Canadian Medical Association Journal), only the placenta and nasopharyngeal swab samples of the mother were tested for the virus.
  • Though nasopharyngeal swab samples of the newborn collected on the day of birth and on two other days, plasma and stool samples tested positive for the virus, the researchers did not collect and test the cord blood.
  • Hence the researchers classified it a “probable” case of congenital route of vertical transmission.

Strong evidence

  • In contrast, the results published recently in Nature Communications involving one mother–newborn pair provide strong evidence of “confirmed” vertical transmission of the SARS-CoV-2 virus through the “transplacental” route.

About transpacental transmission:

  • The virus first occurs in the mother’s blood and later causes placental infection and inflammation.
  • The virus then gets into the blood of the neonate following placental infection.
  • The neonate also showed clinical manifestation of COVID-19 in terms of neurological signs and symptoms.
  • To check for vertical transmission, the researchers first collected clear amniotic fluid prior to rupture of membranes. The amniotic fluid tested positive for two genes of the virus.
  • The baby was delivered through caesarean section to avoid infection during normal childbirth; caesarean delivery is routinely done in the case of HIV positive mothers to cut the risk of vertical transmission.

Source: TH


World bank logistic performance index 2023

India is now ranked 38th out of 139 nations in the Logistic Performance Index (LPI) 2023 of the World Bank. From its previous rankings of 44th in 2018 and 54th in 2014, this is a notable improvement. Earlier, the Logistics Ease Across Different States (LEADS) Report 2022 was published by the Ministry of Commerce and Industry. About Logi

Smuggling of Gold

Airports discovered more than 63% of this illegal gold. The Department of Revenue Intelligence recently conducted the Golden Dawn Operation across India, seizing 101.7 kg of illegal gold valued at Rs 51 crore. Despite the fact that India receives a legal import of about 800-1,000 tonnes of gold each year, the illicit market is thought to be

India-Thailand Relations

Both parties expressed satisfaction with the ongoing bilateral defence cooperation at the 8th India-Thailand Defence Dialogue, which was held in Bangkok, Thailand. Cultural ties and mutual cooperation that have been shaped by thousands of years of lasting historical and cultural ties characterise India and Thailand relations. Highlight

Translocation of Elephants

The Kerala government's appeal of the order of the Kerala High Court is rejected by the Supreme Court. The Kerala government's appeal against the Kerala High Court's directive to move Arikomban (Wild Elephant), the "rice tusker" of Munnar, to the Parambikulam tiger reserve was recently dismissed by the Supreme Court.

Global Buddhist Summit

Global Buddhist Summit In order to improve diplomatic and cultural ties with other nations, the Ministry of Culture recently organised the First Global Buddhist Summit 2023 in collaboration with the International Buddhist Confederation (IBC). About the summit "Responses to Contemporary Challenges: Philosophy to Praxis" is

Toppers

Search By Date

Post Feed

Newsletter Subscription
SMS Alerts

Important Links