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Lab to promote use of organic fertilizers inaugurated in Nilgiris

Lab to promote use of organic fertilizers inaugurated in Nilgiris
thehindu.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thehindu.com Daily Mail and Mail on Sunday newspapers.

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A race against time: The giant weeds taking over Lake Osso in Cameroon

A race against time: The giant weeds taking over Lake Osso in Cameroon
euronews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from euronews.com Daily Mail and Mail on Sunday newspapers.

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A race against time: The giant weeds taking over Lake Ossa in Cameroon

Lake Ossa, Cameroon
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Copyright
AMMCO
By
• Updated: 12/05/2021
- 16:41
Cameroon’s coastal waters have been invaded by three of the world’s most dangerous water weeds, proving an existential threat to aquatic ecosystems and livelihoods of riparian communities.
The latest of these weeds, Salvinia molesta, is
a free-floating, green-brown freshwater fern with branching horizontal stems. It has already invaded more than 40 per cent of
Lake Ossa (4,000 hectares), the largest natural lake found on Cameroon’s coast, since 2016.
The weed doubles in size every 10 days.
The other two, water lettuce and
water hyacinth, appeared much earlier - in 1949 and 1970 respectively, according to the Cameroon National Herbarium, a collection centre for plant specimens. ....

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The Cutter incident and the rollout of the polio vaccine.

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Baby boomers remember both the fear of poliomyelitis the viral infection that attacks the nervous system, leaving some who contract it paralyzed, or dead and the relief that they felt when the rollout of Jonas Salk’s vaccine put an end to repeated midcentury summer outbreaks of the disease. In 1954, the summer before this rollout, 1.8 million kids participated in a widely publicized trial of the new vaccine. From the vantage point of 2020, when vaccine skepticism floats right below the surface of public debate, the widespread embrace of the new vaccine feels surprising. Was the March of Dimes–financed rollout of Salk’s miracle jab, conducted in a hurry as polio threatened to strike again in the summer of 1955, really as smooth as history makes it seem? ....

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Çiçek hastalığıyla adı duyulan aşı dünyanın gündeminden hiç düşmedi

Çiçek hastalığıyla adı duyulan aşı dünyanın gündeminden hiç düşmedi
risalehaber.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from risalehaber.com Daily Mail and Mail on Sunday newspapers.

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