Immunological Storms and Chikungunya in Cuba
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Cuban Doctor Warns of “Immunological Storm” as Chikungunya Cases Rise
The Growing Threat of Chikungunya in Cuba
Cuban doctor Lázaro Elieser Leyva García, a specialist in Internal Medicine residing in Spain, has cautioned about the potential for an
immunological storm
amidst the increasing number of chikungunya cases in Cuba.
Reports indicate a worsening epidemic, raising concerns about the public health response.
Dr.Leyva, writing on Facebook under the name Lázaro E. Libre, emphasized the importance of disseminating accessible scientific details to help the population understand the severity of the situation and adopt preventative measures.
Chikungunya is caused by an RNA virus, known for its ability to mutate and adapt. Dr.Leyva highlighted the example of the E1-A226V mutation,which triggered a significant outbreak in Réunion Island in the Indian Ocean years ago.
The World Health Institution (WHO) details the symptoms and transmission of Chikungunya, noting fever and joint pain as key indicators.
RNA viruses, unlike DNA viruses, lack the proofreading mechanisms that correct errors during replication. This leads to a higher mutation rate, allowing them to evolve rapidly and potentially evade the immune system.
the Risk of Co-infection and “Cytokine Storms”
The current situation in Cuba is especially complex due to the concurrent presence of chikungunya, dengue, Zika, and other febrile viral infections. This increases the risk of co-infection – when an individual is infected with multiple viruses simultaneously or in quick succession.
When the body is confronted with multiple viral infections,the immune system can sometimes overreact,releasing an excessive amount of inflammatory cytokines. This phenomenon, known as a cytokine storm
or immune storm
, can lead to uncontrolled inflammation, tissue and organ damage, and, in severe cases, death.
Research published in the National Center for Biotechnology Information (NCBI) details the pathophysiology and clinical manifestations of cytokine storms.
Why Natural Immunity May Not Be Enough
Dr. Leyva cautioned against relying solely on natural immunity, given the virus’s capacity for mutation. Prior exposure to one strain of a virus doesn’t guarantee protection against new, evolved strains.
Effective prevention requires a multi-faceted approach, including mosquito control, personal protective measures (like insect repellent), and potentially, vaccination when available.