Aumento de la mortalidad en los casos examinados en la comunidad de la línea B.1.1.7 del SARS-CoV-2
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A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
• Pleurisy: indicates the inflammation of the pleura, which causes chest pain and discomfort.
• Pleural Effusion: indicates fluid buildup in the pleural space.
• Atelectasis: Partial collapse of a lung lobe due to mucus blockage or external compression.
• Bacteremia: Bacterial infection entering the bloodstream, commonly seen with...
The pathophysiology of pneumonia involves the following steps:
• Inhalation of Infectious Agents: Pneumonia typically begins when pathogenic organisms (bacteria, viruses, fungi) are inhaled or aspirated into the lower respiratory tract.
• Overcoming Lung Defenses: Ideally, the respiratory tract has defense mechanisms like mucociliary clearance and cough reflex to prevent the establishment of pathogenic organisms. If these defenses are compromised, or the pathogen is highly...

